A) 2m/s
B) 42 m/s
C) 1 m/s
D) 0.2 m/s
Correct Answer: A
Solution :
Kinetic energy is the energy possessed by a body due to its velocity (v) given by \[K=\frac{1}{2}m{{v}^{2}}\] ...(i) Momentum (p) = mass (m)\[\times \]velocity (v) ...(ii) Given, \[K=p\] \[\therefore \] \[\frac{1}{2}m{{v}^{2}}=mv\] \[\Rightarrow \] \[v=2m/s\]
You need to login to perform this action.
You will be redirected in
3 sec
