A body projected vertically up with a velocity 10 m/s reaches a height of 20 m. If it is projected with a velocity of 20 m/s, then the maximum height reached by the body is :
A. 20 m
B. 10 m
C. 80 m
D. 40 m
Answer:B
A body projected vertically up with a velocity 10 m/s reaches a height of 20 m. If it is projected with a velocity of 20 m/s, then the maximum height reached by the body is :
A. 20 m B. 10 m C. 80 m D. 40 m