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1. A car moves with a constant acceleration of 12.0 m/s² in the positive x-direction. After...
1. A projectile is fired straight upward at 170 m/s near the surface of Planet X,...
1. A projectile is fired straight upward at 170 m/s near the surface of Planet X, which has no atmosphere and where the acceleration due to gravity is g = 5 m/s2. (a) What is the acceleration of the projectile halfway to the top of its trajectory? [1] (b) Is the projectile in equilibrium at the top of its trajectory? Explain. [1.5] (c) How fast is it moving at the instant it reaches the top of its trajectory? (0.5] (d)...
Q. No 4: Your hit a football within initial speed of 25.0 m/s as it the...
Q. No 4: Your hit a football within initial speed of 25.0 m/s as it the ball exhibits projectile motion. The football player adjusts the angle of elevation a of the ball until the ball takes 3.00 s to reach the goalkeeper at another end that is 45.0 m away. Ignore air resistance. (a) Find the angle at which the footballer hit the ball. (b) Find the speed and acceleration of the ball at the highest point in its trajectory....
012 (part 1 of 2) 10.0 points A projectile is fired straight upward at How fast...
012 (part 1 of 2) 10.0 points A projectile is fired straight upward at How fast is it moving at the instant it reaches the top of its trajectory? Answer in units of m/s. 013 (part 2 of 2) 10.0 points How fast is it moving at the instant it reaches the top of its trajectory if the projectile is fired upward at 13 from the horizontal?
2. 1-D Kinematics, Constant Acceleration After falling a distance of 45.0 m from the top of...
2. 1-D Kinematics, Constant Acceleration After falling a distance of 45.0 m from the top of a building, a box is landing on the top of a car, which is crushed to a depth of 0.50 m due to the impact. g = 9.8m/s2 Calculate: a) the speed of the box just before it touches the top of the car. b) The average acceleration of the box during the impact. c) The time it took to crush the roof. 3....
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s along a horizontal road where a frictional force is 200N. Calculate the power developed by the engine. If the car now moves up an incline at the same constant speed, calculate the new power developed by the engine. Assume that the frictional force is still 200 N and that sin(theta)=1/20 where theta is the angle of the incline to the horizontal. Problem 2: An...
is ball on Moon, where the acceleration due to gravity is 1/6(g -9.8) and air resistance...
is ball on Moon, where the acceleration due to gravity is 1/6(g -9.8) and air resistance is negligible, is hit directly upward and returns to the same level 85 s later, (a) How high above its origjinal point did the ball go? (b) How fast it moving just a after it was hit? 7. Two train cars are on a straight, horizontal track. The car A starts at rest and is put in motion with a constant acceleration of 2.00...
5. A car starting from rest moves in a straight line with a constant acceleration of...
5. A car starting from rest moves in a straight line with a constant acceleration of 2.20 m/s? for 14.0 s, then slows down to a stop with a deceleration of 2.90 m/s2. How far does it travel? constant meters 6. Two cars are traveling along a straight road. Car (A) maintains a constant speed of 890 kmh; car (B) maintains a constant speed of 115 km/h. Att o, car (B) is 39.0 km behind car A. How far will...
1. A train at a constant 62.0 km/h moves east for 32.0 min, then in a...
1. A train at a constant 62.0 km/h moves east for 32.0 min, then in a direction 46.0° east of due north for 29.0 min, and then west for 42.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip? 2. A cart is propelled over an XX plane with acceleration components ax 5.5 m/s2 and ay = -2.3 m/s. Its initial velocity has components vox = 9.3 m/s and voy...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a final velocity of 10.8 m/s. a. If its initial velocity 5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 b. What is the distance it travels during this interval? Submit Answer Tries 0/10 c. If its initial velocity is -5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 d. What is the total distance...
a projectile is fired with an initial speed of 2000 m/s at an angle 21 degrees...
a projectile is fired with an initial speed of 2000 m/s at an angle 21 degrees above the horizontal. if air resistance is neglected , what is the velocity in m/s at the highest point of trajectory ?
1. A projectile is fired straight upward at 170 m/s near the surface of Planet X, which has no atmosphere and where the acceleration due to gravity is g = 5 m/s2. (a) What is the acceleration of the projectile halfway to the top of its trajectory? [1] (b) Is the projectile in equilibrium at the top of its trajectory? Explain. [1.5] (c) How fast is it moving at the instant it reaches the top of its trajectory? (0.5] (d)...
Q. No 4: Your hit a football within initial speed of 25.0 m/s as it the ball exhibits projectile motion. The football player adjusts the angle of elevation a of the ball until the ball takes 3.00 s to reach the goalkeeper at another end that is 45.0 m away. Ignore air resistance. (a) Find the angle at which the footballer hit the ball. (b) Find the speed and acceleration of the ball at the highest point in its trajectory....
012 (part 1 of 2) 10.0 points A projectile is fired straight upward at How fast is it moving at the instant it reaches the top of its trajectory? Answer in units of m/s. 013 (part 2 of 2) 10.0 points How fast is it moving at the instant it reaches the top of its trajectory if the projectile is fired upward at 13 from the horizontal?
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s along a horizontal road where a frictional force is 200N. Calculate the power developed by the engine. If the car now moves up an incline at the same constant speed, calculate the new power developed by the engine. Assume that the frictional force is still 200 N and that sin(theta)=1/20 where theta is the angle of the incline to the horizontal. Problem 2: An...
is ball on Moon, where the acceleration due to gravity is 1/6(g -9.8) and air resistance is negligible, is hit directly upward and returns to the same level 85 s later, (a) How high above its origjinal point did the ball go? (b) How fast it moving just a after it was hit? 7. Two train cars are on a straight, horizontal track. The car A starts at rest and is put in motion with a constant acceleration of 2.00...
5. A car starting from rest moves in a straight line with a constant acceleration of 2.20 m/s? for 14.0 s, then slows down to a stop with a deceleration of 2.90 m/s2. How far does it travel? constant meters 6. Two cars are traveling along a straight road. Car (A) maintains a constant speed of 890 kmh; car (B) maintains a constant speed of 115 km/h. Att o, car (B) is 39.0 km behind car A. How far will...
1. A train at a constant 62.0 km/h moves east for 32.0 min, then in a direction 46.0° east of due north for 29.0 min, and then west for 42.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip? 2. A cart is propelled over an XX plane with acceleration components ax 5.5 m/s2 and ay = -2.3 m/s. Its initial velocity has components vox = 9.3 m/s and voy...
(1) An object moves with constant acceleration 3.26 m/s and over a time interval reaches a final velocity of 10.8 m/s. a. If its initial velocity 5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 b. What is the distance it travels during this interval? Submit Answer Tries 0/10 c. If its initial velocity is -5.39 m/s, what is its displacement during the time interval? Submit Answer Tries 0/10 d. What is the total distance...
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