Answer:
8) A hanging 7.5 kg object stretches a spring 1.1 m. What is the spring constant? 1 . 1 66. 82 NIMO 9) A spring has a constant of 875 N/m. What hanging mass will cause this spring to stretch 4.5 m? Iouliply then divide 875 X 4. 2- - (4 04. 7919) 10) A spring with a spring constant of 25 N/m is stretched 65 cm. What was the force used? 11) A 25 N force stretches a spring 280 cm. What was the spring constant? 12) A 75 N force stretches a spring 175 cm. What was the proportionality constant? 8) 66.82 N/m 9) 401.79 kg 10) 16.25 N 11) 8.93 N/m 12) 42.86 N/m
Explanation:
Answer:
Position of motorist = 33.8 m
position of police officer = 16.9 m
Explanation:
velocity of motorist, v = 13 m/s
initial velocity of police officer, u = 0
Acceleration of police officer, a = 5 m/s^2
let after time t, the velocity of police officer is equal to the velocity of motorist.
v = u + at
13 = 0 + 5 t
t = 2.6 second
Position of motorist after 2.6 second = v x t = 13 x 2.6 = 33.8 m
Position of police officer after t = 2.6 s
s = ut + 0.5 at^2
s = 0 + 0.5 x 5 x 2.6 x 2.6 = 16.9 m
I can't help if u don't write the full question