Which unit is used to measure force?(1 point)
Responses
watt
watt
newton
newton
joule
joule
kilogram
newton
force = mass × acceleration
To calculate the force, we can use the equation:
force = mass × acceleration
Plugging in the values:
force = 0.2 kg × 8 m/s^2
force = 1.6 N
So, the ball will hit the catcher's mitt with a force of 1.6 N.
To calculate the force exerted by the floor on the ball, we can use the equation:
force = mass × acceleration
Plugging in the values:
mass = 0.1 kg
acceleration = 10 m/s^2
force = 0.1 kg × 10 m/s^2
force = 1 N
Therefore, the floor on the south end of the court exerted a force of 1 N on the ball.
According to Newton's third law of motion, for every action, there is an equal and opposite reaction.
Therefore, the reaction force exerted by the fence on the chair will be equal in magnitude but opposite in direction to the force exerted by the chair on the fence.
Since the chair exerts a force of 8 N on the fence, the reaction force exerted by the fence on the chair will also be 8 N.
So, the fence exerts a reaction force of 8 N on the chair.
A baseball collides with a baseball glove. Which equation is used to calculate the force the glove exerts on the ball during the collision?(1 point)
Responses
force = weight × velocity
force = weight × velocity
force = mass × acceleration
force = mass × acceleration
force = mass × velocity
force = mass × velocity
force = weight × acceleration
A 0.2-kilogram softball is thrown toward a catcher’s mitt. The ball is accelerating at a rate of 8 meters per second squared. With what force will the ball hit the catcher’s mitt?(1 point)
Responses
40 N
40 N
1.6 N
1.6 N
7.8 N
7.8 N
8.2 N
A tennis player hits a 0.1-kilogram tennis ball with her racket from the north end of a court. Her racket was traveling at 65 kilometers per hour. The ball accelerated at a rate of 10 meters per second squared. The ball hits the floor on the south end of the tennis court. The floor sends the ball toward the tennis player's opponent with the same acceleration. How much force did the floor on the south end of the court exert on the ball?(1 point)
Responses
0.01 N
0.01 N
6.5 N
6.5 N
7.5 N
7.5 N
1 N
The wind blows a lawn chair that weighs 4 kg into a fence with a force of 8 N. How much reaction force does the fence exert on the chair?(1 point)
Responses
8 N
8 N
0 N
0 N
0.5 N
0.5 N
2 N