What is the work to be done to increase the velocity of a car from 30 km/h 1 to 60 km/h 1 if the mass of the car is 1500 kg Brainly?

Answer: Work done is 156250 J.

How do you work out the velocity of a car?

Provided an object traveled 500 meters in 3 minutes , to calculate the average velocity you should take the following steps:

1. Change minutes into seconds (so that the final result would be in meters per second). 3 minutes = 3 * 60 = 180 seconds ,
2. Divide the distance by time: velocity = 500 / 180 = 2.77 m/s .

What is the work to be done?

Work is said to be done when a force moves an object through a distance in its own direction.

What is the work done to increase the velocity?

According to the Work-Energy theorem or the relation between Kinetic energy and Work done – the work done on an object is the change in its kinetic energy. Hence, the work to be done to increase the velocity of a car from 30km/h to 60km/h is 156250 joule, if the mass of the car is 1500 kg.

What is positive and negative work?

Positive work done – The work done is said to be positive when force and displacement are in the same direction. Negative work done – The work done is said to be negative when force and displacement are in opposite directions.

How is work done measured?

work done is measured in joules (J) distance moved along the line of action of the force is measured in metres (m)

What is work and example?

Work is force applied over distance. Examples of work include lifting an object against the Earth’s gravitation, driving a car up a hill, and pulling down a captive helium balloon. Work is a mechanical manifestation of energy. The standard unit of work is the joule (J), equivalent to a newton – meter (N · m).

What is the amount of work done by the force of gravity?

The amount of work done by the force of gravity on the object is zero. This is because the net displacement of the object is in the horizontal direction while the force of gravity acts in the vertical downward direction. A battery lights a bulb. Describe the energy changes involved in the process.

What is the coefficient of friction between a block and a bullet?

The bullet emerges with a speed of 1 0 0 m/s and the block slides 2 0 cm on the surface before coming to rest, the coefficient of friction between the block and the surface. ( g = 1 0 m / s 2). A block of mass 2 k g. is free to move along the x-axis.

Can a block of mass 2 kg move along the x-axis?

A block of mass 2 k g. is free to move along the x-axis. It is at rest and from t = 0 onwards it is subjected to a time-dependent force F ( t) in the x direction.