Questions
A particle, starting from rest moves along x-axis for some time with constant acceleration of 2 m/s2. After some time it starts moving with constant retardation of 3 m/s2 and stops. If total time of travel is 20 second, its maximum velocity is
detailed solution
Correct option is A
Total time of travel= 20sLet it travel with constant acceleration 2m/s2 for t sec. Then it travels for 20-t sec with constant retardation 3m/s2v= 2tv- (20-t)3=05t=60t=12thus v= 24m/sTalk to our academic expert!
Similar Questions
Assertion (A) : A body is momentarily at rest at that instant it reverses the direction
Reason (R) : A body can’t have acceleration if its velocity is zero at a given instant of time
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