Questions
A body of mass 2 kg moving on a horizontal surface with an initial velocity of 4 m/sec comes to rest after 2 sec. If one wants to keep this body moving on the same surface with a velocity of 4 m/sec, the force required is
detailed solution
Correct option is B
If f be the frictional force acting on the body, then 4−f2×2=0⇒f=4NForce required to keep the body moving at 4 m/s = f = 4 N.Talk to our academic expert!
Similar Questions
Statement I : The familiar equation mg = R for a body on a table is true only if the body is in equilibrium.
Statement II : The equality of mg and R has no connection with the third law.
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