Homework Answers
Rate of change of displacement is decreasing with time. So velocity is decreasing with time. Hence the car is decelerating. Hence acceleration is opposite to the direction of motion.
Acceleration is along -X axis .
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14)A picture of the car below was taken once ever second, what is the direction of...
I 14) A picture of the car below was taken once ever second, what is the...
I 14) A picture of the car below was taken once ever second, what is the direction of the acceleration of the car? (Be careful, Canvas will not have the same order for the answers below!) t=0 t=1s t=2s t=3s -X + X -X + X There is no acceleration It's not moving I don't know but it's a cool car! Page 4 of 7
6) Cathy is in a car and the direction of Cathy's velocity is west, there is...
6) Cathy is in a car and the direction of Cathy's velocity is west, there is a net force acting on the car, what is the car doing? (Be careful, Canvas will not have the same order for the answers below!) Must be Speeding up in the west direction Must be slowing down in the cast direction Must be Moving at a constant velocity It could be either speeding up or slowing down. It could be either accelerating or moving...
4) Given the kinematic equation below solve for the acceleration à and determine the magnitude of...
4) Given the kinematic equation below solve for the acceleration à and determine the magnitude of the acceleration after time t - 3 seconds given the displacement vectors below. X=(+10 m )X + ( +7 m) =(+1 m )X+(-3 m) 5) Given the following displacement vectors and their resultant vector, determine the components that are missing. (A, B, and C.) A- ( A ) + (-8 m ) + ( 6 m )2 B = ( 10m 8+ ( B,...
15) Mike is in his car on his cell phone (hands free of course), he says...
15) Mike is in his car on his cell phone (hands free of course), he says his acceleration is zero, what do you know about the cars motion? (Be careful, Canvas will not have the same order for the answers below!) The car can only be stopped. The car can only be moving with a constant velocity The car could be stopped or moving with a constant velocity The car is slowing down The car is speeding up The car...
16) Bob is on his bike and is slowing down, he is moving in the negative...
16) Bob is on his bike and is slowing down, he is moving in the negative x direction, what direction is Bob's acceleration? (Be careful Canvas my not have the same order for the answers) Bob +x There is no acceleration he is slowing down There is no acceleration because there is no change in velocity 17) A bird flies at a constant velocity between two positions indicated by the position vectors below, if the bird flies from the initial...
→XCIO D Question 11 7.5 pts An object moves in the x direction only under a...
→XCIO D Question 11 7.5 pts An object moves in the x direction only under a constant acceleration. It's acceleration is 3 m/s in the *x direction. It is originally moving at 14 m/s in the direction. How long does it take in seconds, to travel a displacement of 22 m in the ex direction? Hint: Find the velocity at this displacement similar to the last question, first. Question 12 7.5 pts Car 1 is at rest at a traffic...
13) Mike (mMike = 100 kg) is motionless on a frictionless frozen lake with only a...
13) Mike (mMike = 100 kg) is motionless on a frictionless frozen lake with only a tool box (Mont = 20 kg), in order for Mike to get off the ice he pushes on the tool box with a force of 20 N, what is the accelerations of Mike while he is pushing and in what direction does he move? Mike Tool + X 14) If Cathy is in her car and the car experiences a constant acceleration, which statement...
2. Answer a - e along with reasoning and show directions where ever it's required. a....
2. Answer a - e along with reasoning and show directions where ever it's required. a. A ladybug sits at the outer edge of a merry-go-round, and a gentleman bug sits halfway between her and the axis of rotation. The merry-go-round makes a complete revolution once each second. The gentleman bug's angular speed is a. half the ladybug's. b. the same as the ladybug's. c. twice the ladybug's. d. impossible to determine b. A cockroach sits at the outer edge...
1. A car accelerates from zero to 105 km/h in 5.21 s. What is its average...
1. A car accelerates from zero to 105 km/h in 5.21 s. What is its average acceleration in km/h/s and m/s? 2. An object moving in the x-direction has a position described by the function x(t) - 6.30t + 8.70t2, where t is in seconds and x is in meters. What is the acceleration as a function of time? The figure shows the graph of v vs t for the motion of a motorcyle that starts from rest and moves...
Need help solving these two second order differential equations, the picture below are the answers to...
Need help solving these two second order differential
equations, the picture below are the answers to them. I'm just
stuck on how to work them out to get those solutions
3 Assignments 3.1 Analysis in the absence of air resistance Ignoring alr resistance, Newton's equations of motion for an object under the influence of gravity alone are quite straightforward. We're also ignoring the fact that the gravitational pull on an object above the earth depends upon its height above the...
I 14) A picture of the car below was taken once ever second, what is the direction of the acceleration of the car? (Be careful, Canvas will not have the same order for the answers below!) t=0 t=1s t=2s t=3s -X + X -X + X There is no acceleration It's not moving I don't know but it's a cool car! Page 4 of 7
6) Cathy is in a car and the direction of Cathy's velocity is west, there is a net force acting on the car, what is the car doing? (Be careful, Canvas will not have the same order for the answers below!) Must be Speeding up in the west direction Must be slowing down in the cast direction Must be Moving at a constant velocity It could be either speeding up or slowing down. It could be either accelerating or moving...
4) Given the kinematic equation below solve for the acceleration à and determine the magnitude of the acceleration after time t - 3 seconds given the displacement vectors below. X=(+10 m )X + ( +7 m) =(+1 m )X+(-3 m) 5) Given the following displacement vectors and their resultant vector, determine the components that are missing. (A, B, and C.) A- ( A ) + (-8 m ) + ( 6 m )2 B = ( 10m 8+ ( B,...
15) Mike is in his car on his cell phone (hands free of course), he says his acceleration is zero, what do you know about the cars motion? (Be careful, Canvas will not have the same order for the answers below!) The car can only be stopped. The car can only be moving with a constant velocity The car could be stopped or moving with a constant velocity The car is slowing down The car is speeding up The car...
16) Bob is on his bike and is slowing down, he is moving in the negative x direction, what direction is Bob's acceleration? (Be careful Canvas my not have the same order for the answers) Bob +x There is no acceleration he is slowing down There is no acceleration because there is no change in velocity 17) A bird flies at a constant velocity between two positions indicated by the position vectors below, if the bird flies from the initial...
→XCIO D Question 11 7.5 pts An object moves in the x direction only under a constant acceleration. It's acceleration is 3 m/s in the *x direction. It is originally moving at 14 m/s in the direction. How long does it take in seconds, to travel a displacement of 22 m in the ex direction? Hint: Find the velocity at this displacement similar to the last question, first. Question 12 7.5 pts Car 1 is at rest at a traffic...
13) Mike (mMike = 100 kg) is motionless on a frictionless frozen lake with only a tool box (Mont = 20 kg), in order for Mike to get off the ice he pushes on the tool box with a force of 20 N, what is the accelerations of Mike while he is pushing and in what direction does he move? Mike Tool + X 14) If Cathy is in her car and the car experiences a constant acceleration, which statement...
2. Answer a - e along with reasoning and show directions where ever it's required. a. A ladybug sits at the outer edge of a merry-go-round, and a gentleman bug sits halfway between her and the axis of rotation. The merry-go-round makes a complete revolution once each second. The gentleman bug's angular speed is a. half the ladybug's. b. the same as the ladybug's. c. twice the ladybug's. d. impossible to determine b. A cockroach sits at the outer edge...
1. A car accelerates from zero to 105 km/h in 5.21 s. What is its average acceleration in km/h/s and m/s? 2. An object moving in the x-direction has a position described by the function x(t) - 6.30t + 8.70t2, where t is in seconds and x is in meters. What is the acceleration as a function of time? The figure shows the graph of v vs t for the motion of a motorcyle that starts from rest and moves...
Need help solving these two second order differential
equations, the picture below are the answers to them. I'm just
stuck on how to work them out to get those solutions
3 Assignments 3.1 Analysis in the absence of air resistance Ignoring alr resistance, Newton's equations of motion for an object under the influence of gravity alone are quite straightforward. We're also ignoring the fact that the gravitational pull on an object above the earth depends upon its height above the...
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