Chapter 14, Problem 97P

The pipe has a mass of 800 kg and is being towed behind a truck. If the angle 6 = 30°, determine the acceleration of the truck and the tension in the cable. The coefficient of kinetic friction between the pipe and the ground is µg = 0.1. a, 45° 0.4 m C

Q1: The 2-Mg truck achieves a speed of 15 m/s with a constant acceleration after it has traveled a distance of 100 m, starting from rest. Determine the normal force exerted on each pair of front wheels B and rear driving wheels A. Also, find the traction force on the pair of wheels at A. The front wheels are free to roll. Neglect the mass of the wheels Ans.: NB = 10729.3 N, NA = 8890.71 N traction force FA = 2250 N 0.75 m 2 m 1.5 m- $3 B

The 30-kg uniform thin hollow square plate is pinned at point O, and its side L = 0.2 m. If it is subjected to the constant moment M = 62 N•m and is released from rest from the position as shown, determine the total work done to it when it has rotated 45. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point, and proper Sl unit. Take g = 9.81 m/s?. M Your Answer: Answer units

Determine the steady-state angle a if the constant force P = 115 N is applied to the cart of mass M = 24 kg. The cart travels on the slope of angle 0 = 20°. The pendulum bob has mass m = 7 kg and the rigid bar of length L = 1.5 m has negligible mass. Ignore all friction. %D P M L m Answer: a = i

The system is released from rest when the angle 0 = 90°. Determine the total work done on the uniform slender bar when 0 equals 45.0°. Use the values m₁ = 0.6 kg, m2 = 2.1 kg, and b = 0.5 m. m₂ -26- m1 B B A 26 0 b

A block initially at rest at the top slides down along the smooth cylindrical surface. If the attached spring has a stiffness k = 2 lb/ft, determine its unstretched length so that it does not allow the 6 lb block to leave the surface until 8 = 60° www 2 ft www/www. N k = 2 lb/ft

Determine the steady-state angle a if the constant force P = 170 N is applied to the cart of mass M = 43 kg. The cart travels on the slope of angle 0 = 17°. The pendulum bob has mass m = 9 kg and the rigid bar of length L = 1.1 m has negligible mass. Ignore all friction. M L m Answer: a = i

A force of P = 500 N is applied to the 80-kg cart. Determine the reactions at both the wheels at A and both the wheels at B. Also, what is the acceleration of the cart?  The mass center of the cart is at G.

5. The 85-lb block is released from rest 6 ft above the plate. Determine the compression of each spring when the block momentarily comes to rest after striking the plate. Neglect the mass of the plate. The springs are initially unstretched. 85 lbr 6ft 0.32 ft A k= 1250 lb/t k= 1250 lb/t k'= 1500 lb/ft