Answer to Question #148687 in Physics for Matt

Question #148687

A ball is tossed at a speed of 25 m/2 horizontally off a cliff of a height h. The ball lands 71.4 m away from the base of the cliff. What was the height of the cliff?

Answer options:
a. 14m
b. 28m
c. 40m
d. 80m
e. 120m

Expert's answer

"t=71.4\/25=2.856(s)"

"h=gt^2\/2=9.81\\cdot 2.856^2\/2=40(m)"

Learn more about our help with Assignments: Physics

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. Three moles of a gas expand isothermally. If the initial temperature of the gas is 300K and its fina
2. Compute the change in internal energy when 50g of water is turned into 8.4 x 104 cm³ of steam at 10
3. A Carnot heat engine is operated between two heat reservoirs at temperature 400K and 300K. If the en
4. A Carnot heat engine is operated between two heat reservoirs at temperature 400K and 300K. If the en
5. It takes 4 minutes to boil a quantity of water electrically, How long will it take to boil same quan
6. Hot water at a temperature of t is added to twice that amount at a temperature of 30degree centigrad
7. two samples of pure naphthalene of masses 100g and 200g are heated through temperature difference of