## Is it possible to have acceleration when velocity is zero?

Since **acceleration** is the change in **velocity** over time, **there** has to be a change in **velocity** for something to **accelerate**. Although at an instant in time it is **possible to have zero velocity** whilst **accelerating**. For example, if you drop an object at the instant you release it it has **zero velocity** but it is **accelerating**.

## What happens to acceleration when velocity is 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 an object have zero acceleration and nonzero velocity at the same time give example?

**Acceleration** is the rate of change of **velocity** with **time**. As the **velocity** is a constant value over all the values of **time**, the rate of change of **velocity** is thus **zero**. So, **acceleration** is **zero**. So, **zero acceleration and non zero velocity** are possible for particles moving with constant **velocity**.

## Can a body have a velocity without acceleration give examples?

When an object is thrown upwards, then at the maximum height, **velocity** of **body** is zero at that instant but it **has acceleration** due to gravity. So, at the highest point for a **body** thrown upwards, **velocity** is zero and **acceleration** is equal to g (9.8 ms^-2) in downward direction.

## What is an example of zero acceleration?

No **acceleration** means no change in velocity. For **example** an apple thrown in space. A photon has **zero acceleration** because it can’t be **accelerated**. All other **examples of zero acceleration** are where the “thing” is moving at a constant velocity relative to an inertial reference frame.

## How do you know if acceleration is 0?

When **acceleration is zero** (that is, a = dv/dt = ), rate of change of velocity is **zero**. That is, **acceleration is zero** when the velocity of the object is constant. Motion graphs represent the variations in distance, velocity and **acceleration** with time.

## Is it possible to have an eastward velocity with a westward acceleration?

Answer: An object can **have an Eastward velocity** while experiencing a **Westward acceleration**. The car will slowly stop as **there** will be a decelerration or in other words, an **acceleration Westward**.

## Is acceleration 0 at the highest point?

At a projectile’s **highest point**, its velocity is **zero**. At a projectile’s **highest point**, its **acceleration** is **zero**. The rate of change of the begin{align*}xend{align*} **position** is changing with time along the projectile path.

## 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**. Due to this force, the **velocity** of the object starts decreasing and continues to decrease until it reaches **zero**. After this, the object starts moving in the opposite direction (that is in the direction of force).

## Is it possible to have a positive velocity and negative acceleration?

An object which moves in the **positive** direction has a **positive velocity**. If the object is slowing down then its **acceleration** vector is directed in the opposite direction as its motion (in this case, a **negative acceleration**).

## Can an object have constant non zero acceleration and changing velocity?

Thus, all situations possible. C) an **object has constant nonzero velocity** and **changing acceleration** Not possible: **velocity** cannot be **constant** in the presence of a **non**–**zero acceleration**.

## 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 a body moving with constant velocity have acceleration?

The **velocity** vector is **constant** in magnitude but changing in direction. For this reason, it **can** be safely concluded that **an object moving** in a circle at **constant speed** is indeed **accelerating**. It is **accelerating** because the direction of the **velocity** vector is changing.