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QAIPMT-2006-Ph-2437: NEET 2006 Physics - Class 11 AIPMT-2006-Ph-2437 Solution: A body of mass 3 kg is under a constant force which causes a…
A body of mass 3 kg is under a constant force which causes a displacement s in metres in it, given by the relation , where t is in seconds. Work done by the force in 2 seconds is
Multiple Choice Options
- A J
- B J
- C J
- D J
Step-by-Step Verified Solution
Acceleration = d 2 s/dt 2
= 2/3 m/s 2
Now force acting on body = mass _ acceleration
F = 3 _ (2/3) = 2 Newton
Hence displacement in 2 secs
= (1/3) _ 2 _ 2 = 4/3 m
Finally, work done = 2 _ 4/3 = 8/3 J