Answer Check!!
A girls throws a tennis ball straight into the air with a velocity of 64 feet/sec. If acceleration due to gravity is −32 ft/sec2, how many seconds after it leaves the girl's hand will it take the ball to reach its highest point? Assume the position at time t = 0 is 0 feet.

4 secs
2 secs

Question

Answer Check!!
A girls throws a tennis ball straight into the air with a velocity of 64 feet/sec. If acceleration due to gravity is −32 ft/sec2, how many seconds after it leaves the girl's hand will it take the ball to reach its highest point? Assume the position at time t = 0 is 0 feet.

 4 secs
 2 secs  <--
 1 sec
 Cannot be determined

anonymous · Answer

Yup the integral of -32 is -32t+c and since v(0)=64 c=64 therefore -32(2)+64=0

trisarahtops · Answer

Thank you :)