Question

A tiger launches itself from the ground with an initial velocity of 3.0 m/s at an angle of 44.0 degrees above the horizontal. What is the speed of the tiger, in m/s, the instant before it lands back onto the ground? Do not include the units of m/s in your answer. Express your answer to one decimal place.

Answer 1

From the conservation of energy the speed of the tiger at the instant before it lands back onto the ground is equal to initial speed of the tiger:
v_f=v_i=3.0 m/s.