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physicsgurl12
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maximum height of a toy rocket??
A toy rocket is launched vertically from ground level(y=0) at time t=0s. The rocket engine provides constant upward acceleration during the burn phase. At the instant of engine burnout, the rocket has risen to 49 m and acquired a velocity of 60m/s. The rocket continues to rise in unpowered flight, reaches maximum height, and falls back to the ground. The maximum height reached by the rocket is closest to
A. 244m
B. 256m-wrong
C. 221m
D. 233m
E. 209m
y=vy*t+1/2g*(t^2)
0= 60m/s*t+4.9m/s^2(t^2)
yaya not sure what i just did.
Homework Statement
A toy rocket is launched vertically from ground level(y=0) at time t=0s. The rocket engine provides constant upward acceleration during the burn phase. At the instant of engine burnout, the rocket has risen to 49 m and acquired a velocity of 60m/s. The rocket continues to rise in unpowered flight, reaches maximum height, and falls back to the ground. The maximum height reached by the rocket is closest to
A. 244m
B. 256m-wrong
C. 221m
D. 233m
E. 209m
Homework Equations
y=vy*t+1/2g*(t^2)
The Attempt at a Solution
0= 60m/s*t+4.9m/s^2(t^2)
yaya not sure what i just did.