Question

CHAPTER 6: KINETICS OF A PARTICLE

TUTORIAL
he 2.5 Mg car as shown in is Figure 6-50 being towed by a winch. If the winch exerts a force of
T = (225s) N on the cable, where s is the displacement of the car in meters, determine the
velocity of the car when s = 10 m, starting from rest. Neglect rolling resistance of the car.
Figure 6-50
(Ans: V = 3 m/s)
7
The 10ke crate as shown in Figure 6-51 has an initial velocity of 2 m/s on the inclined plane,
linto the​

Answer 1

Step-by-step explanation:

Work done by winch = kinetic energy of car

∫ T ds = ½ mv²

∫ 225s ds = ½ mv²

225/2 s² = ½ mv²

225 s² = mv²

v = 15s / √m

Given s = 10 m and m = 2500 kg:

v = 15 (10) / √2500

v = 3 m/s