In: Physics
There is a popular game in the past where children sit on areca
leaves and slide down from a higher surface to a lower surface, for
example from the top of a small hill. The total mass of the frond
and a childern is 67 kg and descends with an initial velocity of
43.3 m / s (assuming there is no friction between the frond and the
soil). If then a force slows the movement of the fronds so that it
stops with a constant deceleration of 2.3 m / s^2.
a. What is the magnitude of the force in units of N?
b. What is the distance in meters during deceleration to
stop?
c. How much work in Joules does the force do to the midrib and
child?.