Newton's Laws and Force Calculations

The video tutorial explains how to calculate mass, acceleration, and net force using Newton's second law of motion. It covers four examples: determining the mass of a car, calculating the acceleration of a ball, finding the net force on a papaya, and computing the mass of a crate. Each example involves rearranging the formula F = ma to solve for the desired variable, with unit conversions and simplifications demonstrated throughout.

What is the formula used to calculate the mass of an object when force and acceleration are known?

• m = F + a

• m = F * a

• m = F / a

• m = a / F

If a car accelerates from rest to 40 m/s in 10 seconds with a force of 200 N, what is its mass?

• 40 kg

• 20 kg

• 60 kg

• 50 kg

How do you calculate acceleration when a force is applied to a ball?

• a = m / F

• a = F * m

• a = F / m

• a = m * F

What is the acceleration of a 0.40 kg ball hit with a force of 16 N?

• 40 m/s²

• 4 m/s²

• 16 m/s²

• 0.4 m/s²

What formula is used to find the net force on an object?

• F = m * a

• F = m / a

• F = a / m

• F = m + a

A 3.5 kg papaya is pushed with an acceleration of 2.2 m/s². What is the net force exerted?

• 3.5 N

• 2.2 N

• 10 N

• 7.7 N

How do you calculate the mass of a crate when given the net force and acceleration?

• m = F * a

• m = a / F

• m = F / a

• m = F + a

What is the mass of a crate if a net force of 300 N accelerates it at 0.75 m/s²?

• 300 kg

• 400 kg

• 500 kg

• 200 kg

What is the unit of force in the International System of Units?

• Newton

• Kilogram

• Meter

• Second

Which of the following is equivalent to 1 Newton?

• 1 kg m/s

• 1 m/s²

• 1 kg/s²

• 1 kg m/s²