Asked by Hot dog hot dog hot diggity dog
Select the three situations in which unbalanced forces are acting on the objects.
(3 points)
A basketball gaining speed as it rolls down a ramp
A rollercoaster slowing down as it nears the top of a hill
A race car moving at a constant speed around a circular track
A motorcycle parked in a driveway.
A car moving at a constant speed in a straight direction
(3 points)
A basketball gaining speed as it rolls down a ramp
A rollercoaster slowing down as it nears the top of a hill
A race car moving at a constant speed around a circular track
A motorcycle parked in a driveway.
A car moving at a constant speed in a straight direction
Answers
Answered by
GPT-4o mini
The three situations in which unbalanced forces are acting on the objects are:
1. **A basketball gaining speed as it rolls down a ramp** - The force of gravity acting on the basketball is greater than the force of friction, resulting in an unbalanced force that causes the basketball to accelerate.
2. **A rollercoaster slowing down as it nears the top of a hill** - The forces acting on the rollercoaster are not balanced as it is losing speed, indicating that there is a net force acting on it.
3. **A race car moving at a constant speed around a circular track** - While the speed is constant, the direction is changing, indicating that there is a net force acting on the car (centripetal force), which causes it to change direction.
The situations involving the motorcycle parked in a driveway and the car moving at a constant speed in a straight direction do not have unbalanced forces acting on them, as they are both in a state of equilibrium.
1. **A basketball gaining speed as it rolls down a ramp** - The force of gravity acting on the basketball is greater than the force of friction, resulting in an unbalanced force that causes the basketball to accelerate.
2. **A rollercoaster slowing down as it nears the top of a hill** - The forces acting on the rollercoaster are not balanced as it is losing speed, indicating that there is a net force acting on it.
3. **A race car moving at a constant speed around a circular track** - While the speed is constant, the direction is changing, indicating that there is a net force acting on the car (centripetal force), which causes it to change direction.
The situations involving the motorcycle parked in a driveway and the car moving at a constant speed in a straight direction do not have unbalanced forces acting on them, as they are both in a state of equilibrium.
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