A water skier has a mass of 79 kg and accelerates at 1.4 m/s . What is the net force acting on him? 1. a. Known and unknown values: b. Solve the problem: What is the mass of an object if it takes a net force of 32 N to accelerate it at a rate of 0.88 m/s?? a. Known and unknown values: b. Solve the problem: 3. A net force of 15 N is applied to a cart with a mass of 2.1 kg. What is the acceleration of the cart? a. Known and unknown values: b. Solve the problem: 4. What is the acceleration of a box weighing 555 N if a force of 777 N is applied to it? Known and unknown values: Solve the problem: 5. What is the net force needed to accelerate a 210 N grocery sack upward at 1.5 m/s?? a. Known and unknown values: b. Solve the problem: 6. A construction worker pushes a wheelbarrow with a total mass of 60 kg. What is the acceleration of the wheelbarrow if the net force on it is 120 N? a. Known and unknown values: b. Solve the problem: A van with a mass of 1800 kg accelerates at a rate of 3.0 m/s' in the forward direction. What is the net force acting on the van? C. Known and unknown values: b. Solve the problem: 7. A 6,500 N force accelerates a truck entering a highway at 3.5 m/s'. What is the mass of the truck? a. Known and unknown values: Solve the problem: 8. Kyle's car has a mass of 1400 kg. He accelerates as he leaves a parking lot. If the net force on the car is 3200 N, what is the car's acceleration? a. Known and unknown values: b. Solve the problem: 9 Erin threw a 2.5 kg ball with a net force of 200 N. What was the ball's acceleration? a. Known values: b. Solve the problem: 10. A 1,350 kg car accelerates at 5.5 m/s', What is the net force of the car? a. Known and unknown values: Solve the problem: 11. What is Arnold's mass if his weight is 721 N? a. Known and unknown values: Solve the