You are in Paris, 60 m up in the Eiffel Tower. If you throw a euro downward at a velocity of 2.0 m/s, how long would it take the euro to hit the ground? Neglect air resistance.

t = 3.29 seconds

Explanation:

It is given that,

Height of the Eiffel tower is 60 m

Initial speed of a euro, u = 2 m/s

It will move under the action of gravity in the downward direction. Firstly, we can find the final velocity as follows :

Let t is the time taken by the euro to hit the ground. It can be calculated as :

Hence, it will take 3.29 seconds to hit the ground.

u=13

v=30

s/t=u+1\2at

=13+431/2

=13+265.5

=278.5

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.