Q16. As shown in the image below, the 0.9-kg ball strikes the rough ground and rebounds. The directions of its velocities before and after the strike are shown. If the speeds are v1 = 23 m/s and v2 = 11 m/s, determine the magnitude of the ball's linear momentum (in kg-m/s) before it strikes the ground. Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point. V2 v1 45° 30°

A rocketship has 9 modules each with a mass of 15 200 kg and moves at a speed of 7.0 km/s. One of the modules is explosively propelled away from the rocketship at a speed of 1350 km/h with respect to the rocketship, opposite in direction from the original travel direction of the rocket ship.What is the resulting change in the speed of the rocketship?

In the following problem please include a sketch of the problem, quantities given, quantities to be found, and boxed answer with units.

Q24. The buoyancy force on the 580-kg balloon is F = 6 kN, and the air force acting {C₁.ti-C₂. √t j N, when t is time in on the balloon is Fair seconds, constants C₁ = 24 and C₂ = 240. If the balloon starts from rest, determine its speed after 28 seconds. Neglect the size of the balloon but don't neglect its weight. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point, and proper SI unit. Take g = 9.81 m/s². Fa air Your Answer: Answer = F = 6 kN units

A hockey puck of mass 162 grams slides toward Brett with a velocity of -15 meters per second. Brett whacks the puck directly away from himself with his stick, applying force as shown on the graph below. His maximum force is 33 newtons, and each tic mark on the time axis represents 1/10th of a second. What is the final velocity of the puck? Include units in your answer. More information.

Please answer question 2. Thank you!

Q15. As shown in the image below, the 17-kg crate is being hoisted by the motor. If at this instant shown the velocity of point P on the cable is vp = 2.6 m/s and the speed is increasing at 1.3 m/s², what is the power input supplied to the motor if its efficiency is e = 0.63? Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point, and proper Sl unit. Take g = 9.81 m/s². Vp Your Answer: P Answer D A units

Q5. As shown in the image below, the freight cars A and B are approaching each other, and they have a mass of mà = 19 Mg and må 16 Mg, respectively. The directions of their initial velocities are shown in the image, and the speeds are VA,1 2.0 m/s and VB,1 = 1.7 m/s. If the two cars collide and get stuck together, determine the loss of their combined kinetic energy (in kJ) during the collision. Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point, and proper SI unit. A Your Answer: VA,1 Answer B VB,1 =

The uniform slender rod (7.1 kg) is pinned at point O. If a 5.4-g bullet shoots into the rod with a speed of 660 m/s and becomes embedded in it, determine the total angular momentum H (in kg.m²/s) about point O immediately after that. The rod and the bullet are considered one system. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s². G1m 0.2 m