# What is the coefficient of a car moving with a speed of 20m s?

## What is the coefficient of a car moving with a speed of 20m s?

A motor car is moving on a straight horizontal road with a speed of 20 m/s. The coefficient of friction between the tyres and the road is 0.4. The minimum distance in which the car can come to stop is: 50 m.

## What is the acceleration of a car that starts from rest and gains velocity 20m s in 10 seconds?

A car starts from rest and gains velocity of 20 m/s in 10 seconds. Find its acceleration. SOLUTION: HENCE, acceleration is 2m/s².

## What is the acceleration of a car moving in a straight line path that travels at constant speed of 100 km h?

The acceleration of a car that travels in a straight line at a constant speed of 100 km/hour is zero. Average acceleration equals change in velocity divided by time it takes. Since the cars change in velocity is zero, it’s acceleration is zero.

## What is the average braking force of a 1000 kg car moving at 20m s?

Therefore, the force applied by the brakes is 2000 N. Q. A car of mass 1000 kg moving with a velocity of 20 m/s is brought to rest by applying brakes in 10 seconds.

## What is the acceleration of a car moving at a constant velocity of 30m s?

A car is moving at a constant speed of 30 m/s in a straight line. The acceleration of the car is zero.

## What is the formula for acceleration of a moving car?

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.

## What is the first equation of motion?

The first equation of motion is v = u +at. Here, v is the final velocity, u is the initial velocity, a is the acceleration and t is the time. The velocity-time relation gives the first equation of motion and can be used to find acceleration.

## What is acceleration in a straight line?

What is the linear acceleration? An object that is moving in a straight line will be accelerating if its velocity is increasing or decreasing during a given period of time. Acceleration can be either positive or negative depending on whether the velocity is increasing or decreasing.

## What type of acceleration is a straight line?

When an object moves along a straight line we can say its motion is linear – but that does not mean its acceleration is zero. Just that the acceleration points along the same direction as the velocity (so no change in the direction of the motion).

## What is the coefficient of speed?

The ratio of the maximum fluctuation of speed to the mean speed is called the coefficient of fluctuation of speed. The reciprocal of the coefficient of fluctuation of speed is known as the coefficient of steadiness.

## What does the velocity of a body is 20m s mean?

Expert-Verified Answer According to the given statement, a body is moving with a velocity of 20 m/s which means the body has displaced 20 meters from one point to another in one second. Therefore, its velocity is 20 m/s.

## What is the KE of a car that travels at a speed of 20m s and has a mass of 1200 kg?

A car that travels at a speed of 20m/s and has a mass of 1200 kg. KE = ½mv 2 KE = ½ x 1200 x (400) = 240,000 J 2.

## What is the coefficient of drag of a car?

The average modern automobile achieves a drag coefficient of between 0.25 and 0.3. Sport utility vehicles (SUVs), with their typically boxy shapes, typically achieve a Cd=0.35–0.45.