# What is the speed of a .145 kg baseball if its kinetic energy is 109 J?

## What is the speed of a .145 kg baseball if its kinetic energy is 109 J?

Final answer: The baseball with a mass of 0.145kg and kinetic energy of 109J has a velocity of around 39.1 m/s.

## What is the magnitude of the momentum of a 0.140 kg baseball?

Thus, the baseball’s momentum is measured as 6.3kg/m/s (6.3 kg/m/s). What is the size of the average force the ball applies to the bat? The average force acting during the bat-ball collision is therefore about two tons, with a peak force of nearly four tons, during the 0.7 millisecond contact time.

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## What is the contact time between the ball and the bat?

The contact time between the baseball and bat is less than 0.001 seconds (a little less than one frames of the movie). Other measurements suggest a contact time of about 0.7 milliseconds during realistic playing conditions. The ball experiences a significant amount of deformation during the collision.

## Who exerts the greater impulse on a baseball the pitcher or the catcher?

The catcher exerts the larger force on the ball because the time interval over which the force is exerted is smaller. ANSWER: a. The pitcher and the catcher exert the same amount of impulse on the ball, but the two impulses are in opposite directions.

## What is the formula for speed of 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 Newton’s formula for momentum?

Newton’s third law states that for every action there is an equal and opposite reaction. Momentum and force are defined mathematically as follows: p = mv (momentum = mass * velocity) F = ma (force = mass * acceleration) So, to summarize: Newton’s First Law describes the Conservation of Momentum.

## 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.

## What is the formula for magnitude of total momentum?

The magnitude of the momentum of an object is p = mv. Details of the calculation: The momentum of the fly is (0.0001 kg)(1 m/s) = 0.0001 kg m/s.

## What is the mass of a baseball in KG?

Consider a baseball weighing 5.125oz (mass = 0.145kg) which approaches the bat at a speed of 90mph (40.2m/s).

## Is a ball hit by a bat an example of a collision?

Inelastic collision. An example of this is a baseball bat hitting a baseball – the kinetic energy of the bat is transferred to the ball, greatly increasing the ball’s velocity. The sound of the bat hitting the ball represents the loss of energy. An inelastic collision is sometimes also called a plastic collision.

## What force is hitting a ball?

Being hit by a bat, muscular force acts on the ball through the bat. And, it is also in gravitational field so traditional force also act on It. So, the forces acted upon the boll are both muscular and gravitational force.

## Which of Newton’s laws can be expressed by the formula F Ma?

Newton’s second law of motion states that F = ma, or net force is equal to mass times acceleration.

## How can a pitcher control the movement of a baseball?

By varying grips, wrist spins, and pitching motions, the pitcher can make the ball curve, rise, drop, change speeds, or just plain GO FAST. Speed is the most important aspect of the pitcher’s game, and go fast is what a hardball is designed to do.

## What is the speed of an athlete weighing 50 kg with 100j of kinetic energy?

∴ The speed of the athlete = 2 m/s.