# What is a bullet of mass 10g moving horizontally with a speed of 400?

## What is a bullet of mass 10g moving horizontally with a speed of 400?

A bullet of mass 10 g moving horizontally with a velocity of 400 m/s strikes a wooden block of mass 2 kg which is suspended by a light inextensible string of length 5 m. As a result, the centre of gravity of the block is found to rise a vertical distance of 10 cm.

## When a bullet of mass 10 gram moving with a velocity of 400 metre per second gets embedded?

Thus, the velocity acquired by the wooden block (having the bullet embedded in it) is 4.4 metres per second.

## How do you find kinetic energy from calories?

– Kinetic energy is given as, \$K.E.=\dfrac{3}{2}nRT\$ where n is the number of moles, T is the temperature and R is the universal gas constant which is \$R=1.9872 cal{{K}^{-1}}mo{{l}^{-1}}\$. – Therefore, kinetic energy for a mole of ideal gas in calories is approximately equal to three times its absolute temperature.

## What is a bullet of mass 0.2 kg moving at 400m s?

answer is 80kgm/s. Explanation: momentum = mass *velocity.

## What is a bullet of mass 0.03 kg moving with a velocity of 400?

A bullet of mass 0.03 kg moving with a speed of 400 m/s penetrates 12 cm into fixed block of wond Calculate the average force exerted by the wood on the bullet. [Ans. 2 x 104 N.

## What is a mass of 10kg moves with a velocity of 4m?

An object of mass 10 kg is moving with a uniform velocity of 4 ms-1. The kinetic energy possessed by the object is 80 J.

## What is the velocity of a bullet of mass 20 g is horizontally fired?

∴recoil velocity = 1.5 m/s. A bullet of mass 20g is horizontally fired with a horizontal velocity 150m/s from a pistol of mass 2kg.

## What is k in physics energy?

Since k is a proportionality factor between temperature and energy, its numerical value depends on the choice of units for energy and temperature. The small numerical value of the Boltzmann constant in SI units means a change in temperature by 1 K only changes a particle’s energy by a small amount.

## Is there a formula for kinetic energy?

Kinetic energy is energy possessed by an object in motion. The earth revolving around the sun, you walking down the street, and molecules moving in space all have kinetic energy. Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2.

## What is the SI unit of the Boltzmann constant?

The Boltzmann constant relates an object’s energy to its temperature. In the revised SI, the Boltzmann constant k equals 1.380649 × 10-23 joules/kelvin. k will help to define the kelvin.

## What is a bullet of mass 15 g has a speed of 400 ms?

Expert-Verified Answer. A bullet of mass 15 g has a speed of 400 m/s. What is its kinetic energy ? = 1200 J Ans.

## What is the SI unit of momentum?

Momentum
SI unit kilogram meter per second (kg⋅m/s)
Common symbols p, p
Other units slug⋅ft/s
Dimension MLT1

## What is the kinetic energy of a 0.02 kg bullet?

E = 1 2 . ( 0.02 ) ( 300 ) 2 = 900 J.

## What is the speed of recoil of a 10g bullet shot from a 5kg gun with a velocity of 400m s?

By using this, 10grams or 0.01kg of bullet with speed 400 m/sec and 5kg gun recoil with speed suppose ‘v’. v=0.8m/sec ANSWER.

## What is a bullet of mass 50 grams moving with a speed of?

Hence there is an average retarding force of 62500N. Was this answer helpful? A bullet of mass 50 g is moving with a velocity of 500 m/s. If it penetrates into a 10 cm still target and comes to rest.

## When a bullet of mass 10g is fired from a rifle the bullet takes?

Physics A bullet of mass 10 g is fired with a rifle. The bullet takes 0.003 s to move through its barrel and leaves it with a velocity of 300 m/s.