# What is a bullet of mass 10 gram moving horizontally with a velocity of 400 meters per second strikes a wood

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## What is a bullet of mass 10 gram moving horizontally with a velocity of 400 meters per second strikes a wood

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.

## Which of the following is true when an object of mass m moving on a horizontal frictionless surface?

Answer and Explanation: When an object of mass moving on a horizontal frictionless surface hits and sticks to an object of mass , (D) the speed of the objects that are stuck together will be less than the initial speed of the less-massive object.

## 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 the formula for velocity in horizontal projectile motion?

Formula: Equations of Motion We can analyze the horizontal and vertical components of the particle’s motion separately. A horizontally projected particle moving freely under gravity has no horizontal acceleration. Therefore, its horizontal velocity does not change, so in the horizontal direction, 𝑣 = 𝑢 and 𝑠 = 𝑢 𝑡 .

## 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 the force on a particle of mass M placed on a smooth horizontal surface?

The force on a particle of mass m placed on smooth horizontal surface is F= ( 2 x 2 − 4 ) N directed along X- axis. The particle is projected with minimum speed from x=-2 towards mean position along X-axis for crossing the origin, then the kinetic energy at.

## What is the work on gravity if an object is moving horizontally?

Force of gravity acts vertically downward, while the body is move horizontally. Thus, the force of gravity is not causing the motion. So, the work done by the force of gravity is zero.

## How does mass affect the horizontal velocity and distance and drop time of a projectile?

Mass does not affect the speed of falling objects, assuming there is only gravity acting on it. Both bullets will strike the ground at the same time. The horizontal force applied does not affect the downward motion of the bullets — only gravity and friction (air resistance), which is the same for both bullets.

## 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.

## 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.

## 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 are the 3 main concepts of projectile motion?

Key Points: Range, Symmetry, Maximum Height. Projectile motion is a form of motion where an object moves in parabolic path. The path that the object follows is called its trajectory.

## What are the three types of projectile motion?

There are three types of projectile motions- Oblique Projectile Motion, Horizontal Projectile Motion, and Projectile Motion on an Inclined Plane.

## What is an example of a horizontal motion?

Examples of Horizontal Motion A boat travelling in a river. A bullet fired from a gun. Throwing a ball or a cannonball. Movement of a billiard ball on the billiard table.

## 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.

## What is a bullet of mass 10g moving with a velocity of 400m s or a cricket ball?

Solution: A bullet of mass 10 g moving with the velocity of 400 m/s and a cricket ball of mass 400 g thrown with the speed of 90 km/h . Then the cricket ball has higher momentum. =10 kg ms-1 Thus, the cricket ball has higher momentum.

## 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 10g is fired from a gun of mass 1kg with velocity?

or v1=500m/s. Was this answer helpful?