Practicing Success
A man pulls himself up the 30o incline by the method shown in figure. If the combine mass of the man and cart is 100 kg, determine the acceleration of the cart if the man exerts a pull of 250 N on the rope. Neglect all friction and the mass of the rope, pulleys and wheels. |
4.5 m/s2 2.5 m/s2 3.5 m/s2 1.5 m/s2 |
2.5 m/s2 |
a = \(\frac{3T - mg sin \theta}{m}\) a = \(\frac{3 * 250 - 100*10*sin 30}{100}\) a = 2.5 m/s2 |