Answer to Question #158702 in Mechanics | Relativity for mike

Question

The coefficient of friction of the box (m = 183 183 kg) and μs = 0.15 between the car platform 0.15 . Specify the shortest time for the car to reach speed 60.0 km / h without the box sliding on the car platform?

Answer 1

$\mu N=ma_{max}\to$

$a_{max}=\mu mg/m=\mu g=0.15\cdot9.8=1.47(m/s^2)$

$v=a_{max}t\to t=v/a_{max}=16.67/1.47=11.34(s)$ Answer