# What is the change in momentum when a car weighing 700 kg?

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## What is the change in momentum when a car weighing 700 kg?

Answer. The momentum of a car of mass 700kg having initial velocity 100m/s and final velocity 200m/s is 70000kgm/s.

## What is the kinetic energy of a car of mass 1000 kg moving at 20 ms 1?

By using the equation: Kinetic Energy = (1/2)mv^2, using m as 1000kg and v as 20ms^-1. We can calculate this value as follows: KE = (1/2)(1000)(20)^2This is equal to 2.0*10^5J (solved using a scientific calculator).

## What is the formula for momentum in kg?

In symbols, linear momentum p is defined to be p = mv, where m is the mass of the system and v is its velocity. The SI unit for momentum is kg · m/s. Newton’s second law of motion in terms of momentum states that the net external force equals the change in momentum of a system divided by the time over which it changes.

## How do you calculate momentum?

Step 1: List the mass and velocity of the object. Step 2: Convert any values into SI units (kg, m, s). Step 3: Multiply the mass and velocity of the object together to get the momentum of the object.

## What is the momentum of 1000 kg car moving northward at 20 m?

p = mv = (1000kg)(20m/s) = 20000 kg m/s, northward • c.

## What is the kinetic energy of a 1000 kg car has a velocity of 17 miles per second?

Answer: The kinetic energy of the car is 144, 500 Joules.

## What is the kinetic energy of a 1500 kg car moving at 20 ms?

Therefore, the kinetic energy of the car is 300,000 J.

## What is the momentum of a 1500 kg car?

Therefore p=1500*20 = 30,000 kg m/s.

## What is P total in physics?

For a mixture of ideal gases, the total pressure exerted by the mixture equals the sum of the pressures that each gas would exert on its own. This observation, known as Dalton’s law of partial pressures, can be written as follows: P (total) = P ₁ + P ₂ + P ₃ + …

## Is momentum in kg or G?

Momentum uses kilograms in its units. Momentum is a physical quantity which gives a measure of how much motion an object has. It is a product of the mass of an object and its speed and its units are kilogram meters per second (kg. m/s).

## What is the momentum of a car of mass 800 kg moving?

A car with a mass of 800. kg moving at 27.8 m/s has a momentum of 2.22 × 10⁴ kg. m/s.

## What is the change in momentum of a car weighing?

The change in momentum of a car weighing 1500 kg when its speed increases from 36 km/h to 72 km/h = 30000 kg. m/s − 15000 kg. m/s = 15000 kg. m/s.

## How does momentum change with weight?

You can see from the equation that momentum is directly proportional to the object’s mass (m) and velocity (v). Therefore, the greater an object’s mass or the greater its velocity, the greater its momentum.