John (mass = 82 kg) jumps off a big box and lands on the floor. The height of the box is 1.4

meters. His takeoff velocity is 2 m/sec at an angle of 50 above the horizontal.

a) What was his relative projection height at takeoff?

b) What were his horizontal and vertical velocities at takeoff?

c) How long does it take to reach the maximal height after

takeoff?

d) Is the maximal height greater than 2 m above the floor?

e) How long does it to land on the floor after reaching the

maximal height?

f) Is the horizontal jumping distance greater than 0.8 m?