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A 9 kg steel ball strikes a wall with a speed
of 4.98 m/s at an angle of 30.7° with the
normal to the wall. It bounces off with the
same speed and angle, as shown in the figure.
y
4.98 m/s
30.7°
*
30.7°
9 kg
9 kg
1.98 m/s
x
If the ball is in contact with the wall for
0.255 s, what is the magnitude of the average
force exerted on the ball by the wall?
Answer in units of N.
Your response...
i
Previous Responses
X #1. 201.5089
PALETTE

Expert Solution

Introduction:

We are given mass of ball. We are given that it strikes wall and reflects back. We are given initial and final velocities. We first find change in momentum. We are also given time taken for force applied by wall. We hence find the force applied as force is rate of change of momentum.

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