In: Physics
A diver springs off a 10 m high diving board. If he
leaves the board with an initial upward velocity of 5.0
m/sec,
a.) How high will he rise above the diving board?
b.) How long will he be in the air before he hits the water?
(a) Upward velocity of the diver is
acceleration due to gravity is downwards
Using the third equation of motion,
Velocity will be zero at the highest point
(b) time taken after diving to reach the highest point ,
(using first equation of motion)
time taken from the highest point to the water is,
(using second equation of motion)
total height is,
acceleration is positive in this case because motion is in the direction of gravity,
and velocity at the top is zero
Total time in the air is,