You can use the formula X = VoT + (1/2)AT^2, where X is the distance, Vo is the initial velocity, T is the time, A is the acceleration (since this is a free-fall type of problem, you will use -9.8 m/s^2 as your acceleration).
1 5 1
Kindly please tell me the formula for this conditions?
a. What is its acceleration 15.0 after it was fired?
b. What is it's velocity at the peak of its fight?
c. What is its acceleration at the peak of it's fight?
A. It's acceleration will not change, it is still -9.8 m/s^2. B. The velocity at the peak is 0 m/s. No need to solve. C. The acceleration is constant -9.8 m/s^2. It does not change. :]
For Letter A. Eventhough the time changed it's still -9.8m/s^2? Its 15 secs already
It does not change. :^) The velocity is the one that changes only, not the acceleration. Especially it is a projectile or a free fall.