Thursday
August 21, 2014

Homework Help: Physics

Posted by Anon on Sunday, October 6, 2013 at 3:50pm.

A person is standing on the edge of a cliff of height h= 24 m. She throws a stone of mass m=0.2 kg vertically down with speed v0= 10 m/s (stone 1) and another stone of the same mass vertically up at the same speed (stone 2). The gravitational acceleration is g=10 m/s2.

(a) What is the speed of stone 1 at the bottom of the cliff? (in m/s)

(b) What is the speed of stone 2 at the bottom of the cliff? (in m/s)

(c) What is the time of flight of stone 1 when it hits the bottom of the cliff? (in s)

(d) What is the time of flight of stone 2 when it hits the bottom of the cliff? (in s)

(e) What is the average speed of stone 1 during its flight? (in m/s)

(f) What is the average speed of stone 2 during its flight? (in m/s)

(g) What is the magnitude of the average velocity of stone 1 during its flight?
(magnitude in m/s)

(h) What is the magnitude of the average velocity of stone 2 during its flight?
(magnitude in m/s)

Please help!!How to do it??

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