Quick Answer: Can There Be Work Without Acceleration?

Is it possible for speed to be constant when acceleration is not zero?

a = Δv/Δt If either the magnitude (speed), or the direction, of the velocity are changing, then there will be an acceleration.

It would momentarily have zero speed at the top of its motion, but the velocity is not zero, because the direction of the object’s motion is changing from upward to downward..

Why is acceleration not zero when velocity is zero?

The object has a velocity towards the ground, but due to a force in the opposite direction, the object decelerates to zero. At zero velocity, there is still a net force acting on the object due to the spring, so the object will accelerate in the opposite direction.

Can acceleration be produced without doing any work?

Solution : Yes, it is possible that work done is zero even when a body is in accelerated motion. This happens when force is acting in a direction perpendicular to the direction of motion. … Hence work done is zero, thoudh the motion is accelerated.

Is it possible for a body to have zero acceleration and still be moving how?

Yes, a body with a velocity 0 can still accelerate. The simplest example is a body which is thrown up. At the peak point its velocity becomes 0 but still accelerates due to gravity.

Can an object have 0 acceleration?

Yes, it’s possible to have zero speed while accelerating, but only for an instant. … Acceleration is the rate at which an object’s speed and direction are changing with time, so whenever an object passes through zero speed as it reverses directions it has a non-zero acceleration but a speed of zero.

Can a body move without acceleration?

No, a body cannot move on a curved path without acceleration because while moving on a curved path, the velocity of the body changes with time.

Can a body have uniform speed but still have acceleration?

(i) A body can have acceleration even when it has uniform speed. A body in uniform circular motion has uniform speed but at every point its direction of velocity changes, so its motion is accelerated. (ii) Yes, a body can have acceleration even when its velocity is zero.

How is acceleration calculated?

Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction.

Can a body have constant velocity but varying acceleration?

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 speed of a body be negative?

The ratio of distance travelled and the time taken by a body can be zero but not negative. Since distance and time are positive quantities and speed is obtained by the ratio of these two quantities, speed cannot be negative.

Can a body have zero velocity and still acceleration give example?

A bode can have acceleration without zero velocity. 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.

What happens to speed when acceleration is constant?

The speed is 20 m/s, and the direction is “downward”. Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.