If the motorcycle has a deceleration of a_t = -(0.001s)\;{\rm m}/{\rm s}^{ 2 } and its speed at position A is 18 m/s, determine the magnitude of its acceleration when it passes point B.

8. A 2 L bottle of a carbonated beverage (Coke) at 20 C is placed in a cooler with 10 L of saturated liquid water and 30 kg of ice (both at 0.01 C). Assuming no heat transfer with the surroundings, (a) determine how much ice has melted to bring the temperature of the beverage to...

9. A 0.6 m 3 , rigid tank initially contains air at 1 bar, 30 C. A valve opens and air is allowed to fill the tank from a compressed air line at 1 MPa and 25 C. When the pressure in the tank reaches 2 bar, the valve shuts. Determine (a) the mass (kg) and (b) temperature ( C) in the...

10. On one side of a heat exchanger, liquid water at 200 kPa and 25 C enters at a rate of 0.63 kg/s and exits at 35 C. Air at 250 kPa, 120 C enters the other side of the exchanger at a rate of 0.5 kg/s. (a) Find the rate of heat transfer (kW) to the water. (b) Draw a schematic of the...

If a lateral-to-medial load is applied to the foot, a counteracting moment is produced at the knee joint in a lateral-medial plane, which stretches the lateral collateral ligament and the cruciate ligaments. Estimate the moment produced by cruciate ligaments to that produced by the lateral...

Rod rotates counterclockwise with a constant angular velocity of = 6 . Through mechanical means collar moves along the rod with a speed of = , where is in seconds.

Air enters the duct of an air-conditioning system at 15 psia and 50 F at a volume flow rate of 450 ft3/min. The diameter of the duct is 10 inches and heat is transferred to the air in the duct from the surroundings at a rate of 2 Btu/s. Determine (a) the velocity of the air at the duct inlet and...

A 15cm cube of mass 3kg is lubricated with SAE 10 oil at 20oC (dynamic viscosity of 0.104Ns/m2) slides down a 10o inclined plane at a constant velocity. Estimate the speed of the body if the oil film has a thickness of 2mm and the velocity distribution is linear.

The acceleration of a particle of mass m suspended by a linear spring with spring constant k and unstretched length L0, the spring exerts no force on the particle) is given by x = g-(k/m)(x-L0). Let k = 8lb/ft, m = 0.048 slug, and L0 = 2.5ft. If the particle is released from rest at x = 0ft,...

6. A turbine receives 0.1 kg/s of hot air at 55 m/s velocity at 1.4 MPa and 900 K. The air leaves at 225 m/s and 200 kPa and 500 K. If the turbine loses heat at a rate of 50 kJ/kg, (a) determine the power output (kW)?