Homework Answers
1)yes, when an object moving with constant velocity it's acceleration becomes zero . But an object cannot have an acceleration with zero velocity. Because there is no change in velocity in with respect to time.
2) when the cart is going down its acceleration will be a=gsin(theta) which is less than g value and it remains same because there are no frictional forces does exist. If friction does exist then its value gets change.
3) the object moving in rightward direction may gives with decreasing its value is called the object is in deacceleration means its speed will go down I. e slowing down.
From equation of motion its final velocity gets zero after some time Vf=vi-at
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Could u please solve all? Give me some good reasons for these
questions
(1) Can an...
could u explain why 10b is AB and could you explain to me why we cant...
could u explain why 10b is AB and could you explain to me why
we cant tell why acceleration has direction
10. Use the acceleration vs. time graph on the right to indicate where the line would be on the graph (somewhere in box A. somewhere in box B. either box AB, or at m/s) in the following situations. An object at rest. Acceleration vs. Time A positive velocity. A An object slowing down in the positive direction. I Time...
your acceleration was in the positive or negative direction. You may have to adjust the axes...
your acceleration was in the positive or negative direction. You may have to adjust the axes to see the needed features. Once you get a good graph, study it until you can answer this question: Acceleration graphs are typically "noisy," but you have to at least be able to tell What was the sign of the acceleration while you were speeding up while moving away? Use the definition of acceleration to show how you arrived at this answer Explain why...
Can you all give me an example of a good organizational alliance. Please explain why you...
Can you all give me an example of a good organizational alliance. Please explain why you think the collaboration is good?
Assignments KHW02 1D Motion with Variable Acceleration 7 of 7 Consider a one-dimensional acceleration that starts...
Assignments KHW02 1D Motion with Variable Acceleration 7 of 7 Consider a one-dimensional acceleration that starts at zero at time zero, then increases to some maximum value, then decreases back to zero. Human pushing forces often create accelerations that fit this description; the pushing force is small when the hands of the human first make contact (assuming the fingertips touch first), large when the palms are flat against the object being pushed, and then small again as the fingertips are...
Please answer the following 6 questions, Greatly appreciated. 1) When the net force on an object...
Please answer the following 6 questions, Greatly appreciated. 1) When the net force on an object is zero, the object will ? Select one (a) travel in a straight line (b) travel at a constant speed (c) both a and b (d) neither a or b 2) When the net force is zero, the object’s acceleration is____ a____ , and its velocity ___b____ . a) zero / non-zero (circle one) explain your answer. b) is constant / will change (circle...
Kinematica Lab PHY 231 - University Physics 1 Measurement of acceleration on an inclined plane 1....
Kinematica Lab PHY 231 - University Physics 1 Measurement of acceleration on an inclined plane 1. Incline the track by a few degrees by placing a book or platform jack under one end. 2. Place t hat Place two photogales in gate mode along the track and record the distance between the gates 3 Release the and to Release the cart from the top of the track and record the time it takes the cart to pass through each gate...
Can Some one solve for me this 5 problem. with Question numbers. this all Problem. thank...
Can Some one solve for me this 5 problem.
with Question numbers.
this all Problem. thank you
13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s? 14) What force is needed to stop a 1500 kg car in 40 m if it is initially moving at 35 miles per hour? 15) A particle is moving in a straight line with constant acceleration a. Derive a general equation for velocity v at position x in terms...
Can someone answer question 10 for me please. ? 9. A projectile is launched at some...
Can someone answer question 10 for me please. ?
9. A projectile is launched at some angle to the horizontal with ong the perpen- some initial speed w; air resistance is negligible. (a) Is the pro- jectile a freely falling body? (b) What is its acceleration in the vertical direction? (c) What is its acceleration in the horizontal direction? ccelera- suming projec 10. A baseball is thrown from the outfield toward the catcher. When the ball reaches its highest point,...
Please help! :) Discussion #3 1. Consider the motion of an object that can be treated...
Please help! :)
Discussion #3 1. Consider the motion of an object that can be treated as a point particle and is traveling counter-clockwise in a circle of radius R. This motion can (and will for the purposes of these discussion activities) be described and analyzed using a Cartesian (x-y) coordinate system with a spatial origin at the center of the particle's circular trajectory (the physical path its motion traces out in space). (a) Draw a diagram of the position...
please help with ALL a-g thanks in advance:) HW 6.1. Briefly answer the following questions. a)...
please help with ALL a-g
thanks in advance:)
HW 6.1. Briefly answer the following questions. a) A clock is mounted on the wall. As you look at it, what is the direction of the angular velocity vector of the second hand? What is the value of the angular acceleration of the second hand? b) If the angular acceleration of a rigid body is zero, what is the functional form of the angular velocity? c) What if another planet the same...
could u explain why 10b is AB and could you explain to me why
we cant tell why acceleration has direction
10. Use the acceleration vs. time graph on the right to indicate where the line would be on the graph (somewhere in box A. somewhere in box B. either box AB, or at m/s) in the following situations. An object at rest. Acceleration vs. Time A positive velocity. A An object slowing down in the positive direction. I Time...
your acceleration was in the positive or negative direction. You may have to adjust the axes to see the needed features. Once you get a good graph, study it until you can answer this question: Acceleration graphs are typically "noisy," but you have to at least be able to tell What was the sign of the acceleration while you were speeding up while moving away? Use the definition of acceleration to show how you arrived at this answer Explain why...
Assignments KHW02 1D Motion with Variable Acceleration 7 of 7 Consider a one-dimensional acceleration that starts at zero at time zero, then increases to some maximum value, then decreases back to zero. Human pushing forces often create accelerations that fit this description; the pushing force is small when the hands of the human first make contact (assuming the fingertips touch first), large when the palms are flat against the object being pushed, and then small again as the fingertips are...
Kinematica Lab PHY 231 - University Physics 1 Measurement of acceleration on an inclined plane 1. Incline the track by a few degrees by placing a book or platform jack under one end. 2. Place t hat Place two photogales in gate mode along the track and record the distance between the gates 3 Release the and to Release the cart from the top of the track and record the time it takes the cart to pass through each gate...
Can Some one solve for me this 5 problem.
with Question numbers.
this all Problem. thank you
13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s? 14) What force is needed to stop a 1500 kg car in 40 m if it is initially moving at 35 miles per hour? 15) A particle is moving in a straight line with constant acceleration a. Derive a general equation for velocity v at position x in terms...
Can someone answer question 10 for me please. ?
9. A projectile is launched at some angle to the horizontal with ong the perpen- some initial speed w; air resistance is negligible. (a) Is the pro- jectile a freely falling body? (b) What is its acceleration in the vertical direction? (c) What is its acceleration in the horizontal direction? ccelera- suming projec 10. A baseball is thrown from the outfield toward the catcher. When the ball reaches its highest point,...
Please help! :)
Discussion #3 1. Consider the motion of an object that can be treated as a point particle and is traveling counter-clockwise in a circle of radius R. This motion can (and will for the purposes of these discussion activities) be described and analyzed using a Cartesian (x-y) coordinate system with a spatial origin at the center of the particle's circular trajectory (the physical path its motion traces out in space). (a) Draw a diagram of the position...
please help with ALL a-g
thanks in advance:)
HW 6.1. Briefly answer the following questions. a) A clock is mounted on the wall. As you look at it, what is the direction of the angular velocity vector of the second hand? What is the value of the angular acceleration of the second hand? b) If the angular acceleration of a rigid body is zero, what is the functional form of the angular velocity? c) What if another planet the same...
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