Which of the following situations is true and possible if the velocity of a body is zero then acceleration can be non zero?

Which of the following situations is true and possible if the velocity of a body is zero then acceleration can be non zero?

Yes, it is possible when an object is thrown upward then at the highest point its velocity is zero and it has acceleration due to gravity, which is finite. Was this answer helpful? If the acceleration of a body is not zero, then its velocity can be constant.

Is velocity the magnitude of speed True or false?

Velocity is a vector which has a magnitude and direction. The magnitude (or value) of the velocity is the object’s speed. The direction of the velocity vector is the direction which the object is moving.

What is the speed and direction of a moving object?

Speed is a description of how fast an object moves; velocity is how fast and in what direction it moves. In physics, velocity is speed in a given direction. When we say a car travels at 60 km/h, we are specifying its speed. When we say a car moves at 60 km/h to the north, we are specifying its velocity.

What effect does distance have on the speed of a moving object?

Is acceleration zero if velocity is zero?

Derivative of velocity with respect to time is acceleration. That means if accelerations is zero, velocity must be constant. Now that constant could be anything like it could be 5 m/s . Also if the velocity is 0(which is itself a constant) also indicates that acceleration is zero.

When velocity is zero is speed zero?

If speed is zero, then its velocity must also be zero. If average velocity is zero, then its average speed need not be zero. If speed is constant, then its velocity must also be constant. If velocity is constant, then its speed must also be constant.

Is speed always greater than velocity True or false?

Average speed is always equal to or greater than average velocity.

Is velocity a vector True or false?

Velocity has both magnitude as well as direction, so velocity is a vector quantity. Thus the given statement is true.

Is velocity always equal to speed?

Common mistakes and misconceptions. Average speed does not have to equal the magnitude of the average velocity. People may think that average speed and average velocity are just different names for the same quantity, but average speed depends on distance and average velocity depends on displacement.

What is the SI unit for velocity?

Therefore, velocity is expressed in metres/second or m/s. The SI unit of velocity is metre per second (m/s).

What is also known as inertia?

Newton’s first law of motion states that a body at rest remains at rest, or, if in motion, remains in motion at a constant velocity unless acted on by a net external force. This is also known as the law of inertia. Inertia is the tendency of an object to remain at rest or remain in motion.

Is velocity always positive?

Velocity: The velocity of an object is the change in position (displacement) over a time interval. Velocity includes both speed and direction, thus velocity can be either positive or negative while speed can only be positive. Another way to say this is that speed is the absolute value of velocity.

Is possible for a body to have zero velocity but still be accelerating give an example?

For eg. when an object is thrown upwards, then at the maximum height, velocity at body is zero at that instant but it has acceleration due to gravity. Was this answer helpful?

Is it possible for a body to have acceleration without velocity?

Yes, it is possible to have acceleration without velocity. E.g. when you throw an object vertically upwards, at the highest point, the object’s velocity is zero, but it still has an acceleration of g in the downward direction. (I) varying speed without having varying velocity.

Which of the following is true if the acceleration of an object is zero?

If an objects acceleration is zero, then its speed must remain constant.

Can a body have non zero speed with zero velocity True or false?

This statement is wrong. Since speed shows the magnitude of the velocity, which is non zero; thus, velocity cannot be zero, it will have magnitude.