# What is a 500kg car moving with a velocity of 36km h?

## What is a 500kg car moving with a velocity of 36km h?

Power=500×30×102×60=1250W.

## What would be the net force on the car if it were moving to the left?

A)If a car is moving to the left with constant velocity then the net force applied to the car is zero. B) An object cannot remain at rest unless the net force acting on it is zero.

## Is a car moving with a velocity of 50km hr for 5 hours is an example of which acceleration?

And the car travels 50 km for every hour. The speed is consistent and there’s no variable acceleration. Hence this is an example of uniform velocity.

## What is the speed of a car moving at rate of 72Km h?

72Km/hr = 72×5/18 = 20 m/s.

## What does Newton’s 2nd law state?

Newton’s second law of motion states that F = ma, or net force is equal to mass times acceleration. A larger net force acting on an object causes a larger acceleration, and objects with larger mass require more force to accelerate.

## What is Newton’s second law of speed?

His second law defines a force to be equal to change in momentum (mass times velocity) per change in time. Momentum is defined to be the mass m of an object times its velocity V.

## What is Newton’s second law of constant acceleration?

Newton’s second law states that the acceleration of an object is directly proportional to the net force acting on it, and inversely proportional to its mass. Unbalanced forces cause acceleration.

## What are 5 examples of velocity?

• Earth’s rotation around the Sun,
• Moon’s orbital motion around the Earth.
• The vehicle’s speed.
• How quickly the train is moving.
• The river is moving at a fluctuating speed.
• The rate at which water leaves a faucet.
• The speed at which a bat strikes a ball.

## Which formula describes acceleration?

Acceleration is a core concept in physics that describes how an object’s velocity changes over time. Its formula, $$a = \frac{dv}{dt}$$, allows us to quantitatively analyze the rate of change of velocity.

## Is acceleration an example of velocity?

Velocity is the rate of change of the displacement of an object, whereas acceleration is the rate of change of its velocity.

## What is the speed of a car travels 60 km in 45 minutes?

time taken by car = 45min. = 45/60 hr = 3/4 hr. speed = 60*4/3 = 80km/hr.

## What is the speed of a car moving at 50 km per hour returns on the same route with a speed of 40km hr?

Average speed=1+1(1/50)+(1/40)=44.44m/s.

## What is the formula for retardation?

Hence, the expression for retardation is a = v − u t , when . Q. What is meant by retardation?

## What is a car of mass 1000 kg moving with a velocity of 45km h?

A car of mass 1000 kg moving with a velocity of 45 km/h collides with a tree and comes to stop in 5 s. The force exerted by car is 2500 N. Force = mass × retardation ⇒F=1000 × (2. 5) ⇒F=2500 N The force exerted by the car on the tree is 2500 N.

## What net force is required to keep a 500 kg object moving with a constant velocity of 10m s?

Correct answer: A net force is only required to change an object’s motion. The 500 kg object is moving at a constant velocity; therefore, there is no net force (0 Newtons) acting on the object.

## What is the momentum of a 1200 kg car with a velocity of 25 m s?

Answer and Explanation: We can find the momentum of the car by multiplying the mass times the velocity. Because both the mass and velocity are given in SI units, we do not need to perform any unit conversion before multiplying. Hence, we have shown that the momentum of the car is 30000 kg m/s.