Physics Crash Course JEE Main>Chapter 3 - Laws of Motion>Level 3>Q 14

MEDIUM

JEE Main

IMPORTANT

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The time when the relative motion between the blocks will stop is

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Important Questions on Laws of Motion

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 3 - Laws of Motion>Level 3>Q 14

A bus is moving in a circular horizontal track of radius

10 m

with a constant speed

10 m s^{- 1}

. A plumb bob is suspended from the roof of the bus by a light rigid rod of length

1.0 m

. The angle made by the rod with the track is (take

g = 10 m s^{- 2})

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 3 - Laws of Motion>Level 3>Q 14

The kinetic energy

K

of a particle moving along a circle of radius

R

depends upon the distance

s

, as

K = a s^{2}

. The force acting on the particle is-

HARD

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IMPORTANT

Physics Crash Course JEE Main>Chapter 3 - Laws of Motion>Level 3>Q 14

A car moves at a constant speed on a road as shown in the figure. The normal force by the road on the car are $N_{A}$ and $N_{B}$ when it is at the points $A$ and $B$ , respectively. Then

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