4. Carts with spring plungers run into fixed barriers. The carts are identical but are carrying different loads and so have different masses. The velocity of each cart just before and just after impact is given. A B Before After Before After 10 kg 10 kg O 20 kg 20 kg O O Vo =-3 m/s 'f = 3 m/s Vo=-2 m/s Vy = 0 Before After Before After O 10 kg O 10 kg O 20 kg O 20 kg O O O O O O Vo=-1 m/s y =1 m/s 'o=-l m/s V =1 m/s Rank the magnitude of the change in momentum of these carts.

3. Block A approaches block B at a velocity vo. Block B is at rest. After collision, the two blocks stick together after collision and travel at a velocity of v/3. Which block has a greater mass? A B (A) Block A (B) Block B (C) Neither; their masses are the same. (D) The answer cannot be determined without knowing the mass of one of the blocks.

A net force of 15 N exerted on a wooden block produces an acceleration of 5 m/s. The mass of the wooden block is O a. 0.333 kg O b. 75 kg O c. 3 kg O d. 10 kg A 425g football is having a momentum 8.5kgm/s, south. The velocity of the football is O a. 20m/s, North O b. 20m/s, South O c. 3.61m/s, South O d. 3.61m/s, North If the normal force (N) acting on the object in the figure is 75 N, the mass (m) of the object is

31. Two cars collided at an intersection. Car 1 has a mass of 1460 kg with a velocity of 75 km/h going West. Car 2 has a mass of 1190 kg with a velocity of 100 km/h going North. After collision, the two cars stick together and moved at an angle from the horizontal. Find the value of e and the final velocity of the two cars.

A 7.500 E+3-kg truck moving east at 10.3 m/s collides with a 2.500 E+3-kg car moving west at 35.0 m/s. The collision takes place over a time interval of 0.5 s. The car and the truck stick together after the collision. Find the force (in N) of the car on the truck during the collision. Call this force positive if it points to the east, and negative if it points to the west. (Could you give an explanation on how to transfer/ convert E +3)

A 1.10 kg falcon catches a 0.120 kg dove from behind in midair. What is their velocity (in m/s) after impact if the falcon's velocity is initially 20.0 m/s and the dove's velocity is 8.00 m/s in the same direction? (Enter the magnitude.) m/s Additional Materials O Reading

A 2200-kg auto moving northward at 12.0 m/s runs into a 3800-kg truck which is also moving northward, but at 5.00 m/s. If the vehicles lock bumpers, how fast are they moving just after the collision? A) 7.57 m/s B) 8.57 m/s (c) 9.57 m/s D 10.57 m/s E) o m/s

Physics MCQ help

2. rigle, what is puis A puck with mass m₁ = 1.98[g] moves due North with a speed of v₂ = 1.22 [] and collides with another puck with mass m₂ = 2.66[g] that is moving due East with a speed of 1/₂ = 0.523. After the collision, puck A is moving 20.0° East of North while puck B is moving 15.0° East of South. a. b. What are the speeds of puck A and puck B after the collision? What is the change in energy of the pucks?

It fires a 0.015 kg bullet at 430 m/s (relative to the ground). .(alíi) A 5.8 kg rifle is initially at rest but free to recoil After firing, the velocity of the rifle (relative to the ground) is m/s 1.11- .a O m/s 166266.67-.b O m/s 2.21-.c O m/s 1.11.d O