IIT JEE Entrance Exam> A body of mass 10 kg is moving with a con...

A body of mass 10 kg is moving with a constant velocity of 10 m/s. When a constant force acts for 4 seconds on it, it moves with a velocity 2 m/sec in the opposite direction. The acceleration produced in it is. A. 3m/s^2. B. -3m/s^2. C.0.3m/s^2. D. -0.3m/s^2

ruchir , 12 Years ago

Grade

2 Answers

Saurabh Singh

VELOCITY CHANGE = (10-(-2))

= 12 M/S

TIME PERIOD = 4 SEC

ACCELERATION = 12/4

= 3 M/S^2

HENCE A

Thanks & Regards

Saurabh Singh,

askIITians Faculty

B.Tech.

IIT Kanpur

Last Activity: 12 Years ago

Sunil Kumar FP

inital velocity u=10m/s2

final velocity v=-2m/s2

we know that v=u+ at

-2=10+a×4

a=-3m/s2

thanks and regards

sunil kr

askIItian faculty

Last Activity: 12 Years ago

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IIT JEE Entrance Exam> A body of mass 10 kg is moving with a con...

A body of mass 10 kg is moving with a constant velocity of 10 m/s. When a constant force acts for 4 seconds on it, it moves with a velocity 2 m/sec in the opposite direction. The acceleration produced in it is. A. 3m/s^2. B. -3m/s^2. C.0.3m/s^2. D. -0.3m/s^2

ruchir , 12 Years ago

Saurabh Singh

Sunil Kumar FP

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