# How much power is required to lift a 2kg mass at a speed of 2m s?

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## How much power is required to lift a 2kg mass at a speed of 2m s?

Expert-Verified Answer The power required to lift a 2 kg mass at a speed of 2 m/s is 39 W.

## How does the type of spin given to a baseball by a pitcher influences the path of the baseball?

Specifically, the spin creates air turbulence behind the ball resulting in Magnus Force which pushes the ball upwards and counteracts gravity. This produces the basic relationship: the higher the spin rate on a four-seam fastball the less it will drop in height as it travels from the pitcher’s hand to the plate.

## How does inertia and Newton’s first law apply to baseball?

When a baseball is thrown or hit, the resulting motion of the ball is determined by Newton’s laws of motion. From Newton’s first law, we know that the moving ball will stay in motion in a straight line unless acted on by external forces.

## What is the velocity of a 0.06 kg ball moving with 75 J of energy?

Expert-Verified Answer The velocity of the 0.06 kg ball with 75 J of energy is 50 m/s, calculated using the kinetic energy formula and the given mass and energy values. In this case: The kinetic energy (KE) is given as 75 J. The mass (m) of the ball is 0.06 kg.

## How much force is required to accelerate a 2kg mass at 3 m s2?

Force (F)= Mass (m)× Acceleration (a). ∴F=ma. ∴F=(2kg)×(3ms2). ∴F=6kgms2=6 Newton.

## What is the formula for the power required to lift a mass?

The energy required to lift object 1 is E= mgh ( m is mass, g is gravity , h is height ) E= 10×9.81×1 So E= 98.1 j.

## How do you calculate spin rate in baseball?

Spin rate, or raw spin, measures the overall revolutions per minute (rpm) of a pitched ball by adding together the amount of backspin, topspin, sidespin, and gyroscopic spin (i.e. bullet spin, football spiral, etc.) put on the ball.

## Why is spin important in baseball?

The amount of spin on a pitch changes its trajectory. The same pitch thrown at the same Velocity will end up in a different place depending on how much it spins.

## What kind of spin is used in baseball?

There are two types of spin that are created when throwing a baseball. There is “useful spin” which Alan Nathan describes as “transverse” spin and “gyroscopic spin” which we defined earlier. Transverse or “useful spin” directly influences ball movement and on most pitch types, is a desirable characteristic.

## What is Newton’s 2 law?

Newton’s second law is a quantitative description of the changes that a force can produce on the motion of a body. It states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.

## What is the first law of Isaac Newton?

Newton’s first law: the law of inertia Newton’s first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

## How does Newton’s 3 laws apply to baseball?

Explanation: According to Newton’s third law, the force exerted by the bat hitting the ball will be equal in magnitude but opposite in direction of the force the ball exerts on the bat. Generally, your arms are stiff when you hit the ball forward, so you will not feel the bat recoiling.

## What is the force required in accelerating a 2kg mass at 5m s 2 and a 4 kg mass at 2m s2?

So, 2 kg will require greater force.

## What is the power supply to a particle of mass 2kg?

Power supplied to a particle of mass 2 kg varies with time as P=3t22 watt, where t is in second. If the velocity of particle at t = 0 is v = 0, the velocity of particle at time t = 2 s will be.

## How much power does it take to lift 1kg?

For example, if you lift a one-kilogram weight one meter, then the energy you must expend is: E = Fd = (ma)d = mgd = (1 kg)(9.8m/s2)(1 m) = 9.8 kg m2/s2 = 9.8 joules.

## What would require a greater force accelerating a 2kg mass at 5m s2 or 4kg mass at 2m s2?

By finding out the amount of force in the two given cases, we can find out which force is greater. We can see that the force applied in the first case is greater than the force applied in the second case. Hence, accelerating a 2 kg mass at 5$m/{s^2}$ requires more force than accelerating a 4 kg mass at 2$m/{s^2}$.