The Earth pulls downward on a pingpong ball with a force  of 1N. If this is the "action" force, what is the "reaction" force? answer choices The ground exerts a force of 1N on the ping pong ball The ping pong ball exerts a force of 1 N on the Earth The ping pong ball pushes down on the earth with a force of 1N The is no reaction force when a gravitational force is involved

71. The following situations show a car towing a trailer. Rank the difference in forces between the force that the car applies on the trailer FcT and the trailer on the car FT/c from largest to smallest. D A a=2 m/s? a = 4 m/s? m = 2000 kg v = 20 m/s a = 0 a = 0 m = 4000 kg v = =20 m/s m = 1000 kg v= 20 m/s = 10 m/s !! .m = 1000 kg v c. AF, > AF, > AF. = AF, d. AF = AF, = AFc = AF, AF, = AF, > AF, > AF. а. D В В D B b. AF, > AF, = AF. = AF, D В B

A hockey puck sits at rest on a frictionless surface. The puck is pushed with a particular constant force for 3 seconds and achieves a speed of 5 m/s. In order to achieve a the same speed with a force half as strong as the original one the hockey puck needs to be pushed for O 3 seconds 6 seconds 9 seconds

If no net external force acts on an object which of the following is true Group of answer choices pick one answer only The forces are not equal and opposite It will change speed/velocity It will stop It will not start moving

Three forces act on an object as shown. The mass of the object is 10kg. Determine: The x and y components of the net force The magnitude and direction (angle) of the net force The x and y components of the acceleration The magnitude and direction (angle) of the acceleration

A 20-ton truck collides with a 1500-lb car and causes a lot of damage to the car. During the collision × the force that the truck exerts on the car is much greater than the force that the car exerts on the truck the car and the truck have the same magnitude acceleration. the force that the car exerts on the truck is slightly greater than the force that the truck exerts on the car the force that the car exerts on the truck is exactly equal to the force that the truck exerts on the car

Your physics book is at rest on a table as shown. What is the Newton's 3rd law pair with the Normal Force on the book by the table? Normal Force on the earth by the book    Normal Force on the table by the book    Weight Force on the book by the earth    Weight Force on the table by the earth    Friction Force on the book by the table    Weight Force on the book by the earth    Friction Force on the table by the book    Normal Force on the book by the earth

A person catches a ball with a mass of 145 g dropped from a height of 60.0 m above his glove. His hand stops the ball in 0.0100 s. What is the force exerted by his glove on the ball? Assume the ball slows down with constant acceleration.

the rocket in a rocket powered airplane generates a steady force of 10,000 N in the foward direction and the plane moves horizontally at a constant velocity of 100 m/s through the air. The rocket engine is upgraded so that it now provides a foward force of 90,000 N. what is the new constant velocity of the plane> You cannot neglect air resistance in this question.  200 m/s 300m/s 400 m/s  600 m/s  900 m/s

A pendulum is pulled back at an angle of 20 degrees and released from rest. As the mass at the end of the pendulum swings back to its equilibrium position, which of the following variables decreases? (Select two right answers) Group of answer choices Tension in the string Velocity Acceleration Net Force