In: Physics
A 55-kg diver
stands at the end of a diving board located 10 m above the...
A 55-kg diver
stands at the end of a diving board located 10 m above the water
level. The diving board is held down at one end by an
anchor bolt. The fulcrum is located at 1.4 m from the
bolt and the total length of the board is 3.9 m.
- Draw a free body diagram showing the forces acting on the
diver.
- Calculate the torque that she exerts on the board with respect
to the fulcrum. Neglect the mass of the board.
- Calculate the forces that the bolt and the fulcrum exert on the
board?
The diver springs
upwards to a height of 1.2 m above the board and dives into
water. Ignoring air resistance:
- Find her initial vertical velocity at the instant of
jumping.
- Find her speed when she enters the water. This time assume the
diver’s trajectory to be projectile. (Hint: use work-energy
theorem)