Questions
A car of mass m starts from rest and acquires a velocity along east in two seconds.
Assuming the car moves with uniform acceleration, the force exerted on the car is
detailed solution
Correct option is B
Given, mass of the car = mAs car starts from rest, u = 0Velocity acquired along east, v=vi^Duration, t = 2 sFrom first equation of motion,v=u+at⇒vi^=0+a×2⇒a=v2i^Force, F=ma=mv2i^Hence, force acting on the car is mv2 towards east due to friction on the tires exerted by the road.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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