Please help! Will fan & medal!! A model rocket is launched from the ground with an initial velocity of 288 ft/sec.

How long will it take the rocket to reach its maximum height? Show all work in the space provided.

Question

Please help! Will fan & medal!! A model rocket is launched from the ground with an initial velocity of 288 ft/sec.

How long will it take the rocket to reach its maximum height? Show all work in the space provided.

anonymous · Answer

@dan815

welshfella · Answer

to do this youy use one of the equations for constant acceleration
the acceleration in this case is that due to gravity which = 32 ft s-2
in this case we use -32 bacause it is acting against the motion of the rocket

welshfella · Answer

use the  formula  v = u + at

At maximum height the velocity v = 0 , a the acceleration = -32 , the initial velocity = 288 ft/sec and t is the required time
solve for t

welshfella · Answer

initial velocity = u

anonymous · Answer

Is it 9?

welshfella · Answer

so just plug those values into the formula

welshfella · Answer

0 = 288 -32t
32t = 288
t = 9 seconds


yes

anonymous · Answer

Thank you! You helped explained it good. Could I ask another question? I'll make sure to close this one.

welshfella · Answer

ok