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When force is perpendicular to the direction of motion no work is done ture or false?
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When force is perpendicular to the direction of motion is work done?
No. At least not by the force that's perpendicular to the motion. When you push a baby stroller (or a car), you do work, but the force of gravity, downward and perpendicular to the motion, doesn't.
What should be the angle between the direction of force and the direction of motion of a body so that the work done is zero?
If the force is perpendicular (at 90 degrees) to the direction of motion, that force does no work.
True or false if you know an objects mass and acceleration you can determine the net force being exerted on the object?
False. You will know nothing at all about any force acting perpendicular to the direction of motion.
How can a force make an object move change direction or stop?
When the force acts perpendicular to the direction of motion then it makes it to move along curved path When the force is opposite to motion then it could stop it
A force at any angle to the direction of motion can perform work?
False a force at any angle to the direction of motion can not perform work. Power is the rate at which a force is applied.
When force is perpendicular to the direction of motion is work done?
No. At least not by the force that's perpendicular to the motion. When you push a baby stroller (or a car), you do work, but the force of gravity, downward and perpendicular to the motion, doesn't.
What should be the angle between the direction of force and the direction of motion of a body so that the work done is zero?
If the force is perpendicular (at 90 degrees) to the direction of motion, that force does no work.
True or false if you know an objects mass and acceleration you can determine the net force being exerted on the object?
False. You will know nothing at all about any force acting perpendicular to the direction of motion.
How can force make an object move change direction or stop?
When the force acts perpendicular to the direction of motion then it makes it to move along curved path When the force is opposite to motion then it could stop it
How can a force make an object move change direction or stop?
When the force acts perpendicular to the direction of motion then it makes it to move along curved path When the force is opposite to motion then it could stop it
A force at any angle to the direction of motion can perform work?
False a force at any angle to the direction of motion can not perform work. Power is the rate at which a force is applied.
What is the direction of the force that's keeps and object moving in a circle?
The centripetal force which always acts perpendicular to the motion of the object
True or false radio waves are electromagnetic waves?
False
When force is and what direction of motion no work is done?
Perpendicular (90o). Like whirling an object around on a piece of string. The force is along the string, at right angles to the motion.
What should be the angle between the direction o foce and the direction of motion of a body so that the work done is zero?
Work is zero when the force is perpendicular to the direction of motion, as it is, for example, in a circular gravitational orbit.
Why the formula of work done obliquely is F s cos Ө?
Because work done is equal to the force times the distance travelled IN THE DIRECTION of the force. Distance travelled in an oblique direction can be decomposed into two components: s*cos(x) in the direction of the force and s*sin(x) in a direction perpendicular to it (where x is the angle between the force and the resultant motion). Motion in a perpendicular direction is NOT work done by the force, which leaves s*cos(x). Multiply by the force (as required) and you have your answer.
What force is always perpendicular to the motion when in a circular motion?
The Centripetal Force
