In the overhead view of the figure, a 420 g ball with a speed v of 4.2 m/s strikes a wall at an angle 0 of 26° and then rebounds with the same speed and angle. It is in contact with the wall for 7.5 ms. In unit-vector notation, what are (a) the impulse on the ball from the wall and (b) the average force on the wall from the ball? (a) Number i i + i j Units (b) Number i + j Units >

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter6: Momentum And Collisions
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In the overhead view of the figure, a 420 g ball with a speed v of 4.2 m/s strikes a wall at an angle 0 of 26° and then rebounds with the
same speed and angle. It is in contact with the wall for 7.5 ms. In unit-vector notation, what are (a) the impulse on the ball from the wall
and (b) the average force on the wall from the ball?
(a) Number i
i +
i
j Units
(b) Number
i +
j Units
>
Transcribed Image Text:In the overhead view of the figure, a 420 g ball with a speed v of 4.2 m/s strikes a wall at an angle 0 of 26° and then rebounds with the same speed and angle. It is in contact with the wall for 7.5 ms. In unit-vector notation, what are (a) the impulse on the ball from the wall and (b) the average force on the wall from the ball? (a) Number i i + i j Units (b) Number i + j Units >
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