Question

Suppose the coefficient of static friction between a quarter and the back wall of a rocket car is 0.330. At what minimum rate would the car have to accelerate so that a quarter placed on the back wall would remain in place?

Answer 1

Answer:
`3.23 m/s^2`

Step-by-step explanation:

Given

`\mu_s =0.330`

Frictional Force is balanced by force due to car acceleration

Frictional force
`F_s`

`F_s=ma_(min)`

`\mu_sN=ma_(min)`

`\mu_s\cdot mg=ma_(min)`

`a_(min)=\mu_s \cdot g=0.330* 9.8=3.23 m/s^2`