.
2.2 m/s
2 m/s
1.8 m/s
0 m/s
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0.2 kg ball rolling at 40 m/s
500 kg car traveling at 16 m/s
200 kg truck traveling at 9 m/s
50 kg child skateboarding at 4 m/s
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The rocket changes its inertia as the air is released.
The mass of the rocket becomes less allowing it to move forward.
The rocket will move as a result of friction being produced.
The escaping air creates a net force pushing the rocket forward.
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To the right
To the left
Downward
Upward
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2 m/s
1,000 m/s
1 m/s
5 m/s
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Take longer to travel the same distance
Develop more stopping friction
Requires less energy to keep moving
take longer to both accelerate and stop
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a person's inertia
the force of gravity
A person's acceleration
The time of contact with the ground
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Sixty meters per second square
Zero point 6 meter per second square
One point seven meter per second square
Eighteen meters per second square
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Velocity has magnitude and direction; speed has magnitude only.
Velocity has magnitude only; speed has magnitude and direction.
Velocity has momentum; speed has time.
Velocity has greater energy; speed has lower energy.
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Multiplying the mass of the object in kilogram with acceleration due to gravity of planet Earth which is equivalent to nine point eight meters per second square.
Multiplying the mass of the object in kilogram with the velocity in meter per second
Multiplying the mass of the object in kilograms with acceleration in meter per second square.
None of the above
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The cards are acted upon by an unbalanced forceĀ
The cards accelerated due to the force of the fan.
The cards exerted an equal force on the air blown by the fan.
The cards that were the lightest were blown the farthest.
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All three balls accelerated with the same speed away from the thrower.
The tennis ball accelerated the most because it has the least mass.
The softball accelerated the most because it has the greatest mass.
The baseball accelerated more than the tennis ball because it has more mass.
The ball with the least resistance traveled at the greatest speed.
Each ball rolled to a stop due to the unbalanced force of friction.
Each ball exerted an equal force on the person's foot.
The ball kicked with the least force traveled the greatest distance.
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Since the objects were loose, they continued moving until acted upon by a net force.
The objects inertia changed when the drive applied the brakes.
The objects accelerated when the brakes were applied.
The objects moved forward as a reaction force to the brakes.
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