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Why Com Is an Important Point

53.A ball of ...

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53.A ball of mass 1 kg strikes a wall with velocity 1m/s at an angle of 60^° with the wall and reflects at the same angle. If it remains contact with wall for 0.1 second then the force is

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1 k g

particle strikes a wall with velocity

1 m / s

30^{o}

with the normal to the wall and reflects at the same angle. If it remains in contact with wall for

0.1 s

, then the force is:

1 kg

particle strikes a wall with a velocity

1 m/s

30^{\circ}

and reflects at the same wall in

0.1

second, then the force will be:

1 kg

particle strikes a wall with a velocity

1 m/s

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and reflects at the same angle in

0.1

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2 kg

strikes a wall with a velocity

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with the horizontal as shown in the figure below. It reflects at the same angle from the wall in

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Q. A 0.5 kg ball moving with a speed of

12 m/s

strikes a rigid wall at an angle of

30^{\circ}

with the wall. It is reflected with the same speed at the same angle. If the ball is in contact with the wall for 0.25 second, the average force acting on the wall is

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