Find (a) the distance in which the snowmobile coasts to a halt and (b)

A

allison

Member
the time required to do so.? Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt. The snowmobile and its rider have a mass of 120 kg. Under the influence of a drive force of 225 N, it is moving at a constant velocity whose magnitude is 4.17 m/s. The drive force is then shut off. Find (a) the distance in which the snowmobile coasts to a halt and (b) the time required to do so.
 
S

sojsail

New member
Velocity is constant when the net force applied is zero. Therefore the friction must be 225 N opposing. Without drive, the friction alone is acting on the snowmobile.

b. F = m*a
Solve for the acceleration (deceleration). Then
Vf^2 + Vo^2 + 2*a*d
and
Vf = Vo + a*t
 
Top