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A projectile is fired from the top of a cliff of height h above the ocean below. The projectile is fired at an angle θ above the horizontal and with an initial speed vi.
(a) Find a symbolic expression in terms of the variables vi, g, and θ for the time at which the projectile reaches its maximum height.
t =

(b) Using the result of part (a), find an expression for the maximum height hmax above the ocean attained by the projectile in terms of h, vi, g, and θ.
hmax =
a ball is thrown horizontally from the roof of a building 46.0 m tall and lands 25.1 m from the base. what was its initial speed?
Your 19.0 kg curling stone travels at 3.0 m/s[N] towards an opponents stone at rest.The stones strike and your stone rolls off to the side with a velocity of 1.8 m/s[N22W]. The opponents stone moves in a northeasterly direction. What is the final velocity of the opponents stone (With magnitude and direction - solved using vector components)
How to solve an inelastic collision question using vector components?
A body weighs 9.8N on equator of earth which does not spin.If earth starts spinning what will be its weight?
if you do 100 J of work to elevate a bucket of water, what is it's gravitational potential energy relative to its starting point
an object has a mass of 100 grams and a volume of 20 cubic centimetres. what is its density?
If a progectile is thrown horizontally from a height of 5m what is the range if the initial speed is 10 m/s
a model rocket rises with constant acceleration to a height of 3.3m, at which this point its speed is 28.0 m/s . How much time does it take to reach this height?
In each cycle of a Carnot engine, 248 J of heat is absorbed from the high-temperature reservoir and 50 J is exhausted to the low- temperature reservoir.
What is the efficiency of the engine?
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