How will an object at rest be affected if multiple forces working on it are opposed but unbalanced?(1 point)
Responses
The acceleration of the object will increase.
The acceleration of the object will increase.
The unbalanced forces will cause the object to produce a humming sound.
The unbalanced forces will cause the object to produce a humming sound.
Motion will be either created, stopped or changed.
Motion will be either created, stopped or changed.
The mass of the object will decrease.
None of the above responses are correct. The correct answer is: Motion will be either created, stopped or changed.
A blue car weighing 1,302 kg is accelerating forward at a rate of 4 m/s 2
. What is the forward force of the car? (1 point)
Responses
1,298 N
1,298 N
5,208 N
5,208 N
1,306 N
1,306 N
325.5 N
The correct answer is: 5,208 N
Two people collide on a busy city street. What information is needed to calculate the force one of the people exerts on the other person?(1 point)
Responses
the mass and acceleration of each person
the mass and acceleration of each person
the speed of each person
the speed of each person
the velocity of each person
the velocity of each person
the location of the collision
The correct answer is: the mass and acceleration of each person.
A soccer ball rests on the ground in a stationary position. Which of the following best describes the forces acting on the ball? (1 point)
Responses
balanced forces
balanced forces
unbalanced forces
unbalanced forces
accelerating forces
accelerating forces
unequal forces
The correct answer is: balanced forces.
Two bowling balls of different masses collide while accelerating at 1.875 m/s 2
. The first ball, rolling to the right, weighs 7 kg. The second ball, rolling to the left, weighs 4 kg. What force does the bowling ball weighing 7 kg exert on the bowling ball weighing 4 kg?(1 point)
Responses
8.875 N to the right
8.875 N to the right
13.125 N to the right
13.125 N to the right
7.5 N to the left
7.5 N to the left
3.73 N to the right