Determine kinetic energy

4. 4000-lb car A traveling north at 30 mph through an intersection is t-boned by 3500-lb car B traveling east. The two cars became stuck together and skidded in a direction 35 degrees north of east. Determine velocity of car B upon impact.

6. If the pendulum is released from the horizontal position, the velocity of its bob in the vertical position is a. 3.8 m/s b. 6.9 m/s c. 14.7 m/s d. 21 m/s 0.75 m

2.) If the Angular Momentum is define as the following function: M =, what is the Moment as a function of time? %D

Velocity of C relative to D isn't 0 since block C slides along member DE, while member DE rotates, and you didn't use the formula for rotating axis

Block A is initially held at rest. Find how far it will descend before its velocity is momentarily zero. (This is different from finding the point where there would be equilibrium).

3/65 A pilot flies an airplane at a constant speed of 600 km/h in the vertical circle of radius 1000 m. Calcu- late the force exerted by the seat on the 90-kg pilot at point A and at point B. B 1000 m A 600 km/h

The diagram shows a cart at four positions as it moves along its track. At which position is the sum of the potential energy and kinetic energy of the cart the same? B Ⓒ A B at A and C all positions, A through D at Rand D

Consider the given pulley system. The rope is drawn towards the motor with a speed of 3 m/s. What is the speed of mass A and in what direction is it moving?

Body U with mass 5m is stacked on the top body W with mass m, and released. The bodies are in contact along the frictionless interface at 45° to the vertical. The body U is in contact with the frictionless vertical wall. Body W lies on the floor with coefficient of friction u. Relevant dimensions are shown in the figure. Express the results in terms of given quantities: m, g, h and µ (except when µ is given numerically). You need not evaluate sin 45° = cos 45° = 2/2. h U: 5m C 45 D W: m 3h