A ball of mass 200g is attached to a string 50 mm and a force F is applied as shown. The W.D by this force if the string makes an angle 60° with vertical is? [at initial and final positions speed of the ball is zero.]
A. 1J
B. 0.5J
C. 0.05J
D. 0.25J
Answer:B
A ball of mass 200g is attached to a string 50 mm and a force F is applied as shown. The W.D by this force if the string makes an angle 60° with vertical is? [at initial and final positions speed of the ball is zero.]
A. 1J B. 0.5J C. 0.05J D. 0.25J