A 5 kg dog sits in a stationary, 27 kg sled on a frictionless, icy lake. The dog jumps out of the sled towards the north side of the lake at a speed 4 m/s. 5 kg 4 m/s 27 kg What is the speed and direction of the sled after the dog jumps from it? 0 74 m/s in the south direction

A moving cart of mass 3.5 kg crashes into a stationary cart of mass 10.5 kg as shown. The carts are prevented from touching one another during the collision by a pair of neodymium magnets mounted on the ends of the carts and positioned for repulsion. After separating, the more massive cart moves to the right at 1.4 m/s. What are the final speed and direction of motion of the less massive cart? strong magnets Vfi VGi = 0 3.5 kg 10.5 kg Frictionless surface

Your mass is 63.2 kg, and the sled s mass is 21.7 kg. You start at rest, and then you jump off the sled, after which the empty sled is traveling at a speed of 4.27 m/s. What will be your speed on the ice after jumping off?     1.47 m/s     0.88 m/s     2.06 m/s     1.77 m/s

A 3.3 × 104-kg space probe is traveling at a speed of 14000 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 1.6 × 104 N over a distance of 3700 km. What is the final speed of the probe? Number Units

27

Blocks A, B, and C are aligned along a straight line on a horizontal frictionless surface. The masses of the blocks are M, 3M and 4M, respectively. Block A is initially moving to the right along the same line at a speed v, as shown in the figure. Blocks B and C are initially at rest. Block A collides with and sticks to block B. The two blocks then collide with and stick to block C. What is the speed of * ?block C after the collisions Block A Block B Block C 8v v/4 0. v/3 O v/8 O

Your mass is 92.6 kg, and the sled s mass is 17.1 kg. You start at rest, and then you jump off the sled, after which the empty sled is traveling at a speed of 3.11 m/s. What will be your speed on the ice after jumping off? 0.57 m/s 0.46 m/s 1.03 m/s 0.80 m/s

Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them. A cord holding them together is burned, after which the block of mass 3M moves to the right with a speed of 55.1 m/s. What is the speed of the block of mass M?

A 1200 kg car approaches a 950 kg car that is stopped at a traffic light. The initial speed of the first car is 40 mph, to the right, and it hits the second car. Both stay together moving at the same speed. What final speed do both have? 20 m/s 50 m/s 10 m/s 30 m/s