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Easy
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A packet is dropped from a balloon which is going upwards with the velocity , the velocity of the packet after 2 seconds will be
The correct answer is:
When packet is released from the balloon, it acquires the velocity of balloon of value . Hence velocity of packet after , will be
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A cyclist starts from the centre of a circular park of radius 1 km, reaches the edge of the park, then cycles along the circumference and returns to the point as shown in figure. If the round trip takes 10 min, the net displacement and average speed of the cyclist (in metre and kilometer per hour) are
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Then
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Then
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A ball is thrown vertically upwards from the top of a tower at .It strikes the pond near the base of the tower after 3 . The height of the tower is
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If the velocity of a particle is , then the average acceleration of the particle between and is
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Physics-General