Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 14A, Problem 7PLA
To determine
The momentum of the cart before the collision and the momentum of the cart after the collision.
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a green ball with a mass of 5kg travles in the +x-direction with a speed of 6m/s. it strikes a stationery red ball with a mass of 8kg. if the green ball goes off at an angle of 20 degrees from its original trajectory with a speed of 4m/s, find the final speed and angle of the red ball. is this collision elastic? show your work.
A 5.0 kg object has a momentum of 25.0 kg m/s west. What is its velocity?
Show your work and calculate the final answer.
A 7.0 kg object travels 2.6 m west in 1.1s. Assuming uniform velocity, what is the momentum of the object?
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Chapter 14A Solutions
Physics Laboratory Manual
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- Use the worked example above to help you solve this problem. Two billiard balls of identical mass move toward each other as shown in the figure. Assume that the collision between them is perfectly elastic. If the initial velocities of the balls are vli = +25.2 cm/s and v2i = -20.3 cm/s, what are the velocities of the balls after the collision? Assume friction and rotation are unimportant.arrow_forwardIn a head-on collision, two isolated particles m, = 7 kg and m2 = 5 kg collide with initial speed Vii = 4 m/s and v2i = 6 m/s as shown in Figure 1. After collision m, rebounds with speed vif 3 т/s. m2 m1 m2 üzi üzf =? Before Collision After Collision Figure 1 a) Calculate the final velocity (speed and direction) of m2. Show your work. b) Is this collision elastic or inelastic? Explain your answer and support it with calculations.arrow_forwardA 3 kg block moving to the right at 8 m/s hits a stationary 5 kg block. The collision is elastic and one-dimensional. Find the final velocity of each block using frame-shifting. Show your work. Important: cannot use any other method to find the final velocitiesarrow_forward
- An archer launches a 40g arrow into the air at a 45° angle from the ground. The bowstring exerts an average force on the arrow of 45 N for 0.12 seconds. Is the magnitude of the impulse of the bowstring to the arrow greater than, less than, or equal to the impulse gravity has provided to the arrow by the time in has reached its maximum height? Explain/show your work.arrow_forwardPlease explain and show work for the following question with equations used. Thank you!!arrow_forwardA 1.2 kg ball moving due east at 40m/s strikes a stationary 6.0 kg object. The 1.2 kg ball rebounds to the west at 25m/s. What is the speed of the 6.0 kg object after the collision? Show your work and calculate the final answer.arrow_forward
- In the Impulse and Pairs of Forces lab, the impulse of the applied force acting on an object over a given time interval was given as (image) During the labortory, your found that impulse could also be related to motion in a certain way. Restate that simple mathematical realationship here. You also found a simple mathematical realationship between pairs of forces in certain situations. Restate that realationship here. Put these results together to draw a conclusion comparing the motion of two objects before and after a collision. You should be able to find a quantity, which will remain unchanged in a collision. Be sure to justify your reasoning.arrow_forwardA red cart is moving rightward with a momentum of 60kg.m/s when a blue cart is initially at rest. The collision causes the red cart to slow down and the blue cart to be set in motion with a momentum of 40kg.m/s. Enter the momentum values (in kg.m/s) of each individual cart and of the system of two carts before and after the collision. Also indicate the change in momentum of each cart. Show your work. before Collision After Collision Momentum Change Red Cart Blue Cart systemarrow_forwardPlease show all your work on the paper.arrow_forward
- How to solve this questionarrow_forwardDuring an elastic collision, a proton with a velocity of 5000 m/s (forward) undergoes a head on collision with an alpha particle (composed of two protons and two neutrons) with a velocity of 2000m/s (backward). Determine the final velocities of the subatomic particles. Assume forward is positive. Show all your work please.arrow_forwardThe 0.5-kg ball strikes the rough ground and rebounds with the velocities shown. Determine the magnitude of the impulse the ground exerts on the ball. Assume that the ball does not slip when it strikes the ground, and neglect the size of the ball and the impulse produced by the weight of the ball. V₁ = 25 m/s V₂ = 10 m/s 45° 30° Show your whole, clear, and detailed solution. Use all stored values. Thank you.arrow_forward
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