Hi can you help me with numbers 54,49,50,46 thanks

54. A machine in an ice factory is capable of exerting 3.00 X 102 N of force to pull a large block of ice up a slope. The block weighs 1.22 X 104 N. Assuming there is no friction, what is the maximum angle that the slope can make with the horizontal if the machine is to be able to complete the task? 49. A hockey puck is hit on a frozen lake and starts moving with a speed of 12.0 m/s. Exactly 5.0 s later, its speed is 6.0 m/s. What is the puck's average acceleration? What is the coeicient of kinetic friction between the puck and the ice? 50. The parachute on a racecar that weighs 8820 N opens at the end of a quarter-mile run when the car is traveling 35 m/s. What net retarding force must be supplied by the parachute to stop the car in a distance of 1100 m? 46. A girl on a sled coasts down a hill. Her speed is 7.0 m/s when she reaches level ground at the bottom. The coefficient of kinetic friction between the sled's runners and the hard, icy snow is 0.050, and the girl and sled together weigh 645 N. How far does the sled travel on the level ground before