1. If a 500kg truck is accelerating at a rate of 30 m/s/s, how much force will it take to stop it? Put the items below in order of most inertia to least inertia: Pencil: Chair: Science book: Desk: Paper If you exert the same amount of force on two objects with different masses (one low and one high), what will happen to the acceleration of each object? What is the equation used to calculate force? Week 29 pg. 73

2. Joe and Mike push on the same side of a practice dummy. Joe exerts a force of 720 N to the right. Mike exerts a force of 750 N also to the right. What is the net force Joe and Mike exert on the practice dummy? A box sliding down a ramp accelerates as the box slides. Are the forces acting on the box balanced? The direction of friction is ________. Objects falling through air experience what forces? In what directions? Week 29 pg. 73

3. Describe how an object could have balanced forces acting on it but still be moving. What type of forces are needed to get an object to accelerate? To get a baseball to change it’s motion (make it stop) what type of forces are needed? Which of the following would have the greatest acceleration if hit with equal forces? Week 29 pg. 73 Type of BallMass Softball192 Baseball95 Tennis Ball42 Golf ball37