A Spring is attached to a 2n5 kg block. The other end of the spring is pulled by a toy train that moves forward at 0.10 m/s. The spring constant is 94.4 N/m. The coefficient of static friction between the block and the surface is 0.60. The spring is at its equilibrium length at time, t=0 seconds when the train starts to move. At what time does the block initially start to slip?

Question

anonymous · Answer

I don't know if I did it right I got 1.5 seconds

anonymous · Answer

Fs= usFn = 14.7N
Fnet = ma
Kx - Fs = 0
x = fs/k
t = d/v
t = x/t = 1.5seconds?

anonymous · Answer

oh it's not 2n5 it's 2.5 my bad

anonymous · Answer

|dw:1335057868322:dw|