B 3 kg 6 kg A 5 kg

Bullet B has a mass 15 g and blocks A and C both have a mass 2 kg. The coefficient of friction between the blocks and the plane is Hx = 0.25. Initially the bullet is moving at vo and blocks A and C are at rest (Fig. 1). After the bullet passes through A it becomes embedded in block C and all three objects come to stop in the positions shown (Fig. 2). Determine the initial speed of the bullet vo- B Vo - (1) 100 mm 150 mm B PC A

At the instant illustrated assigned as point A, a 3 kg box is pushed against spring A so it can travel along the floor and reach spring B. Spring A's undeformed length is 0.7 m. Spring B is initially undeformed. The spring constant of spring A is 600 N/m and spring B is 800 N/m. The package is released from rest. Assume that the package maintains contact with the floor at all times. The coefficient of sliding friction is 0.4 across the whole floor. Point B is the instant wherein the package touches the end of undeformed spring B. Point C is the instant the package temporarily stops as it reaches the other end of the deformed spring B.1. What's the work done by friction from point A to B?2. What's the sum of the work done by gravity and spring from point A to B?3. What's the velocity of the box at the instant it touches the end of undeformed spring B?4. What's the maximum deformation of spring B as the box reaches point C?

The Skier starts from rest at point A. Determine the horizontal distance X traveled after he leaves the ramp and the landing speed. Neglect friction. The Skier starts from rest at point A. Determine the horizontal distance traveled after he leaves the ramp and the landing speed. Neglect friction. X=10.2 m, vc=24.2 ms   X=7.81 m, vc=18.1 ms     X=13.1 m, vc=24.9 ms     X=8.96 m, vc=−21.2 ms