A 4 kg block on a rough horizontal surface (μk=0.25μk=0.25) is pulled by 20 N at 37° above horizontal (take
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Chapter 3: Laws of Motion and Frames of Reference (Set-4)
A 5 kg block is pulled by 20 N on a rough floor; kinetic friction is 5 N. Acceleration is
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A 4 kg trolley changes speed from 2 m/s to 5 m/s in 3 s on a smooth floor; net
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A 2 kg block has net force 6 N on it in an inertial frame; its acceleration magnitude is A
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A body keeps moving with constant velocity on a smooth horizontal surface because the net external force is A Always
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A particle has x(t)=t³−6t²+9t (m). How many times does it come to rest for t>0? A A. 1 time B
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A car’s velocity changes from 12 m/s to 2 m/s in 5 s; average acceleration is A +2 m/s² B
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A particle’s velocity changes from 4 m/s to 10 m/s in 3 s; average acceleration is A 3 m/s² B
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For a particle moving in 1D, velocity is negative when motion is A Along +x B Along −x C At
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Which quantity has both magnitude and direction in motion description? A Displacement B Speed C Distance D Time Explanation Explanation:
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