## What is the average speed for the whole journey?

Divide the total distance traveled by the total time spent traveling. This will give you your average speed. . So if Ben traveled 150 miles in 3 hours, 120 miles in 2 hours, and 70 miles in 1 hour, his average speed was about 57 mph.

## How is constant speed calculated?

Formula for constant-speed = Total distance / Total time taken.

## How can you tell if something is moving at a constant speed?

Key Takeaways

1. Constant velocity means that the object in motion is moving in a straight line at a constant speed.
2. This line can be represented algebraically as: x=x0+vt x = x 0 + vt , where x0 represents the position of the object at t=0 , and the slope of the line indicates the object’s speed.

## Is constant speed and uniform speed same?

Constane speed and uniform speed are the same. Exactly same. Just the two different names. So, for constant speed the distance increases constantly, hence the graph would be a straight line.

## Does uniform mean constant?

Explanation: UNIFORM VELOCITY: when an object is moving in a straight line, without any acceleration. No change in speed or direction is experienced. CONSTANT VELOCITY: when the speed of an object has not changed even though the object may have experienced a change in direction (zero acceleration).

## Why is acceleration zero when velocity is uniform?

It measures how much velocity is changing in a given time interval. If the body has uniform velocity, it means velocity is not changing. So the change in velocity is zero. In other words, its acceleration is zero.

## Is acceleration possible in uniform motion?

An object undergoing uniform circular motion does not accelerate.

## Is acceleration 0 in uniform circular motion?

In the case of the uniform circular motion, the speed (v) of the particle in uniform circular motion is constant (by definition). This implies that tangential acceleration, aT, is zero. Consequently, angular acceleration ( aTr ) is also zero.

## Can a body have uniform velocity and nonzero acceleration?

S1​ : A body having non-uniform velocity will have zero acceleration. It will travel along a line of force, if it has some initial velocity in the direction of a non-zero acute angle with the line of force.

## Can a body have acceleration with zero velocity?

Answer: Yes, an object can have zero velocity and still be accelerating simultaneously. Let us consider an object moving in the forward direction.

## Can a body have zero acceleration but non zero velocity?

It is possible to have a non-zero value of acceleration when the velocity of a body is zero. At the highest point, the velocity of the ball becomes zero, after which it starts to fall down. At this point, the velocity of the ball is zero yet its acceleration is equal to g=9.8m/s2.

## Can a body have constant speed and still have a varying velocity?

No, a body can not have its velocity constant, while its speed varies. Rather, it can have its speed constant and its velocity varying. For example in a uniform circular motion.

## Can the average speed ever be zero?

The average speed cannot be zero unless the body is stationary over a given interval of time. Average speed is the ratio of the total distance travelled by a body to the total time interval taken to cover that particular distance.

## Why is acceleration not zero when velocity is zero?

For the most part velocity is not zero if an object is accelerating. Since acceleration is the change in velocity over time, there has to be a change in velocity for something to accelerate. If the velocity is constant however, the acceleration is zero (because the velocity isn’t changing over time).

## Can a body have acceleration at rest?

Answer. Yes, A body can have acceleration while at rest,but it will be negative acceleration or retardation.

## When a body is momentarily at rest?

If a body is momentarily at rest, it means that force or acceleration are necessarily zero at that instant.

## Is acceleration 0 when at rest?

Finding the acceleration Thus, even though the velocity of an object at rest must be zero, acceleration can clearly be non-zero for objects at rest. A particle that is thrown vertically upwards stops momentarily at the highest point of motion.

## What is acceleration at rest?

An object is at rest if its velocity is 0. Of course it depends on the reference frame, but if you see it with v=0, then you see it at rest. However, it doesn’t mean it is in equilibrium. Acceleration is the rate of change of the velocity. The velocity CAN be 0 with non void acceleration.

## At what point during its motion is the object’s acceleration zero?

At a projectile’s highest point, its velocity is zero. At a projectile’s highest point, its acceleration is zero.