A boxer punched a punching bag weighing 300 N horizontally with a force of 200 N. The c.g. of the bag is located 1.5 m from the hinge on the roof. Compute for the velocity of the bag after impact if the time of impact is 0.75 sec. a. 4.91 m/s      b. 7.04 m/s c. 5.14 m/s      d. 6.33 m/s

3. A 2kg owl jumps directly upward into the air with a speed of 5m/s, but a wind is blowing which exerts a 6N force on the ball to the right. How far away does the owl land? Ax Vi Vf a At X Y 6N 5m/s ?

81 You are walking around your ineighborhood ond your ineis 10od and see a child d on top of a rach of a build kick a soccer ballo The socer bdll is! icked of y90 from the edge of the building Bith on initial felociy of 5ms ond landg 57 meters adau 57.meters ako yay fom s dall, How tall is the buildin child is standing that J Ae on2

1. A. 41.73 m/s D. 53.65 m/s B. 66.77 m/s E. 52.98 m/s C. 22.87 m/s F. 79.2 m/s 1--1 IZJSS Alexis bounced a 0.550 kg rubber ball on the floor. The ball's speed just before hitting the floor was 5.4 m/s while just after rising off the floor its speed was 3.2 m/s. What impulse Iy was applied to the ball by the floor? Assume "up" is the positive direction. 2. D. A. 3.830 kg-m/s B. 4.730 kg-m/s E. 4.113 kg-m/s 4.823 kg-m/s 3.735 kg-m/s 5.476 kg-m/s F. 1--1 IZJXM A toy train engine (2.1 kg) is moving 0.28_m/s to the right when it collides with a train car (3.2 kg) moving 0.19 m/s in the opposite direction, and they stick together. Find the velocity of the engine-car combination as they move off together. Assume "to the right" is the positive direction. 3. A. -0.00267 m/s D. -0.006516 m/s B. -0.002181 m/s E. -0.005211 m/s CA -0.003774_m/s F. -0.006594 m/s ن ضم نے C.

A 0.17 kg hockey puck traveled across the ice at 2.2 kg m/s. What was its velocity? A. 0.37 m/s B. 2.4 m/s  C. 13 m/s  D. 2.0 m/s

The average speed of a car in km/hr that drives a distance of 20 km in a time of 15 minutes is? a. 80 km/hr b. 20 km/hr c. 15 km/hr d. 10 km/hr

A man of weight 80 kg is standing in an elevator which is moving with a constant velocity of 6 m/s in downward direction. The apparant weight of a man will be (take g=10 m/s^2) A. 1280 N B. 0 N C. 320 N D. 800 N E. 640 N

8. 45 kg skier slides down a 410 incline. What would be the magnitude of the skier's acceleration if friction is ignored? A. 2.5 m/s2 O B. 1.65 m/s2 C. 0.4 m/s2 O D. 6.4 m/s2 O E. 0.6 m/s2 O F. 5 m/s2 G. zero

A 48.42kg hunter ropes a 167.82 kg sleeping polar bear and pulls the bear towards him until they meet. Originally they are 211.22 m apart on frictionless ice. When the hunter pulls the polar bear to him the hunter will move... a. 52 b. 810 c. 67 d. 160

If a trebuchet launches a boulder at an angle of 40 0 and the boulder lands 300 meters away from the trebuchet 9 seconds later what is the boulder's velocity in the x direction?