please solve question 4 it's urgent.
Attachments:
Answers
Answered by
1
(a) let the velocity be u.
if he catched the ball after 8 seconds so time taken for the ball to reach at its maximum point would be half of it i.e. 4 seconds.
using,v=u+at
v=0(at maximum height ofcourse)
0=u+(-g)(4)[-g because direction of displacement(upward) and direction of gravity(downward) is opposite]
u=4g=4*9.8=calculate it.
(b)at maximum height velocity of the ball would be zero.
(c)s=ut+(1/2)*at^2=(4g)(4)+(1/2)*(-g)(4*4)
=16g+(-8g)
=8g=8*9.8 answer.
if he catched the ball after 8 seconds so time taken for the ball to reach at its maximum point would be half of it i.e. 4 seconds.
using,v=u+at
v=0(at maximum height ofcourse)
0=u+(-g)(4)[-g because direction of displacement(upward) and direction of gravity(downward) is opposite]
u=4g=4*9.8=calculate it.
(b)at maximum height velocity of the ball would be zero.
(c)s=ut+(1/2)*at^2=(4g)(4)+(1/2)*(-g)(4*4)
=16g+(-8g)
=8g=8*9.8 answer.
Ruby04:
What it's maximum height ?
Similar questions