5. A 72 kg skier starts from rest at the top of a ramp 25 m high. She launches off the ramp at the bottom at a height of 3 In. Use GRASP for the following questions. [a] What is the skiers launch speed at the bottom of the ramp [assuming no friction)? [3 marks] (b) What is the maximum height above the ground the skier reaches after leaving the ramp if the ramp has an angle of 24? [5 marks] Name: Total Marks: / 21 1. Calculate the net force and the acceleration for the following 64 kg mass. Show all calculations for full marks. [2 marks] 361M 128 N 627 N Net Force: Acceleration: 2. State which one of Newton's Laws is represented by each of the following scenarios and explain how you know. [3 marks] (a) As the cannonball is shot out, the cannon recoils backwards. [b] The larger the mass. the more force is needed to accelerate it. Choose one of the following questions. 3. A 110 kg sled at rest is pulled by a dog and reaches a speed of 10 km/h [N] in 2.5 seconds. Use GRASP to answer the following questions. (a) Determine the acceleration of the sled. [Watch your units] [2 marks] (b) Determine the displacement of the sled. [2 marks] (c) Determine the net force acting on the sled. [1mark] (d) If the coefficient of kinetic friction is 0.12, draw a FBD of the sled and determine the tension in the rope (the applied force from the dog). [3 marks]