A tennis ball is thrown vertically upward with an initial velocity of +8.0 m/s.(a) what will the ball\\'s speed be when it returns to its starting point?(b) how long will the ball take to reach its starting point?
sachin singh , 14 Years ago
Grade 12
1 Answers
vikas askiitian expert
Last Activity: 14 Years ago
ans a) speed of ball will be equal to the speed of projection....
ans b) applying v = u +at
at the topmost point v=0
t=u/a =8/10 sec ( accleration a =-g)
t is the time taken by the ball to move to highest point