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Displacement of COM:Application

ntConsider a ...

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ntConsider a vehicle going on a horizontal road towards east.Neglect any force by the air.The frictional force on the vehicle by the roadn nta)is zero if the vehicle is moving with a uniform velocityn ntb)is towards east if the vehicle is acceleratingn ntc)must be towards eastn ntd)must be towards westn

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Q. Consider a vehicle going on a horizontal road towards east. Neglect any force by the air. The frictional force on the vehicle by the road.

Q. Consider a vehicle going on a horizontal road towards east. Neglect any force by the air. The frictional forces on the vehicle by the road.

Q. A vehicle moves east with a speed of

50 m / s

and then towards north with a speed of

50 m / s

only. Total time taken by the body is

5 s

. What is the average acceleration of the body?

Q. A person is moving on a rough horizontal surface towards east. Then the direction of friction force is towards:

Q. An observer and a vehicle, both start moving together from rest (towards right) with acceleration

5 m / s^{2}

2 m / s^{2}

, respectively. There is a

1 k g

block on the floor of the vehicle and coefficient of friction is

μ = 0.3

between their surfaces. What is the magnitude of the work done (in

J

) by frictional force on the

1 k g

block observed by the running observer, during first second of the motion.

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