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forward thrust from the driving wheels, which is equal ( and opposite ) to the frictional forces from air resistance and rolling resistance ( tyres ) .
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∙ 13y ago
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What kinds of motion required no forces?
"Uniform" motion. That means any constant speed in any straight line or rotation at a constant speed.
Does an object moving in a constant speed in a straight line have any forces acting on it?
It will have zero force BUT, it WILL have a constant velocity
What will happen to an object moving at a constant speed if no outside forces act on it?
It's not necessary to specify that the object is moving at a constant speed. Any object with no outside forces acting on it does that. It also continues moving in a straight line.
What would happen to a hot air balloon if the uplift and gravity forces were the same?
If the sum of the vertical forces on an object is zero, then the object moves vertically at a constant speed (which could be zero, or any other constant number).
If the acceleration of an object is constant what is the object doing?
With poor language we cannot assess. Any way the objects speed goes on increasing
What is an object that continoues to move when an unbalenced force is removed?
Any moving object continues to move, in a straight line and at constant speed,when all forces are removed from it.
What kinds of motion required no motion?
"Uniform" motion. That means any constant speed in any straight line or rotation at a constant speed.
What are the conditions for an object to stay at restto keep moving at constant velocity?
"Constant velocity" means neither the speed nor the direction of the object's motion is changing. "Rest" is just one kind of constant velocity ... the kind with zero speed. The condition for an object's velocity to remain constant is: Either there are no forces acting on the object, or else all of the forces acting on it add up to zero. If there is any NET force acting on the object, then its velocity will change ... it will either speed up, slow down, or curve in a new direction.
If an object is accelerating can its velocity be constant?
No. Acceleration is any change of velocity.But its speed can be constant.
When velocity is increasing can acceleration remains constant?
Acceleration is any change in velocity. Velocity is made up of a magnitude (the speed), and a direction. Velocity can change if the speed increases, if it decreases, or if the direction changes. For example, when a car goes around a curve, you feel the force of the acceleration.
What do you mean when we talk about a constant speed?
No. Circular motion can have constant speed but varying velocity. Constant speed means constant speed in any direction, like a car on cruise control turning a corner. Constant velocity means constant speed in a straight line. If the direction changes, that's considered a change in velocity.
If an object is being accelerated can its velocity be constant?
No. Acceleration is any change of velocity.But its speed can be constant.
