Questions
A ball of mass m is moving towards a batsman at a speed v. The batsman strikes the ball and deflects it by an angle without changing its speed. The impulse imparted to the ball is given by
detailed solution
Correct option is C
The ball moving along AB with velocity v is deflected along BC with velocity v'. The magnitude of vectors v and v' is the same = v.Change in velocity is Δv=v′−v=v′+(−v), i.e.,∆V is the resultant of vectors v' and -v. As shown in figure, the magnitude of ∆V is given by Δv=v2+v2+2v2cosθ =2v2(1+cosθ) =2v cos θ2Similar Questions
A block of mass kg rests on a horizontal frictionless xy-plane. What would be the acceleration of the block if it is subjected to two forces as shown in figure?
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