please include a step by step of how you got the answers. PHY 215 Homework 112 (
ID: 1787225 • Letter: P
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please include a step by step of how you got the answers.
PHY 215 Homework 112 (Due: Monday, 11/20/2017) Write your answer on a separate sheet of paper 1) A batter applies an average force of 8000 N to a baseball for 1.1 ms. What is the magnitude of the impule delivered to the baseball by the bat? 2) A golf ball of mass 0.050 kg is at rest on the 1 stater being strick it ha rloch ine mi thr and ball were in contact for 0.81 ms, what is the average force exerted on the ball by the club? 3) A block of mass m = 5.6 kg, moving on a friction less surface with a velocity of i " 65 m/s to the right, collides with a block of mass M at rest, as shown in the below figure. After the collision, te 56-ky block recoils with a velocity oft,0.70 ms to the left. If the blocks are in contact for 0.20 s, what is the magnitude of the average force exerted on the 5.6-kg block, while the two blocks are in contact? before alter 4) A block of mass -3.6 kg, moving on a frictionless surface with a speed v 9.3 m/s, makes a sudden perfectly elastic collision with a stationary block of mass M, as shown in the below figure. Just after the collision, the 3.6-kg block recoils with a speed of vf 2.7 m/s What is the speed Vof the other block? before after 05m's 's mM before after 5)Ablock of mass m = 9 kg has a speed Vand is behind a block of mass M-27kgthat has a speed of 0.5 m/s The surface is frictionless. The blocks collide and couple. After the collision, the blocks have a common speed of 0.9 m/s. In the above figure, the loss of kinetic energy of the blocks due to the collision is closest toExplanation / Answer
1. Impulse = Ft
= 800 x (1.1 x 10^-3)
= 0.880 Ns Or kg m/s
2. Impulse = change in momentum = F t
0.050 (102- 0) = F (0.81 x 10^-3)
F = 6296 N
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