Question
Asked Mar 11, 2020
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A force in the negative direction of an x axis is applied for 32 ms to a 0.75 kg ball initially moving at 15 m/s in the positive direction
of the axis. The force varies in magnitude, and the impulse has magnitude 49.6 N s. (a) What is the ball's velocity (including sign for
direction) just after the force is applied? (b) What is the average magnitude of the force on the ball?
(a) Number
Units
(b) Number
Units
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A force in the negative direction of an x axis is applied for 32 ms to a 0.75 kg ball initially moving at 15 m/s in the positive direction of the axis. The force varies in magnitude, and the impulse has magnitude 49.6 N s. (a) What is the ball's velocity (including sign for direction) just after the force is applied? (b) What is the average magnitude of the force on the ball? (a) Number Units (b) Number Units

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Expert Answer

Step 1

Given:

Direction of force is in negative x direction.

Implementation of force for time (t) = 32 ms.

Mass of the ball (m) = 0.75 kg.

Initial velocity of ball (u) = 15 m/s.  (+x direction)

Magnitude of impulse (P) = 49.6 Ns.

Step 2

Part a)

The impulse is given as,

Physics homework question answer, step 2, image 1

Step 3

Part b)

The acceleration of ball during the application of force,

Physics homework question answer, step 3, image 1

...

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