Answer:
Period for 1 revolution is 1.75 seconds
Explanation:
given data
revolutions R = 8
time t = 14 seconds
to find out
What is the period
solution
we know that Period is the time per revolution
so here period formula that is express as
period = =
= 0.57 revolution in one second
so in 1 revolution = seconds
so in 1 revolution = 1.75 seconds
so period for 1 revolution is 1.75 seconds
Answer:
The net force is 1350 kN
Solution:
As per the question:
Mass of man, m = 60 kg
Initial speed of the car, v = 15 m/s
Final speed of the car, v' = 0 m/s
Distance covered by the person before coming to rest, d = 5 mm =
By using the third eqn of motion:
Thus the force on the person can be given by:
F = ma =
