Motion CUA 2 Review

If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)

• The one with a mass of .78 kg will have the greatest acceleration.
• The one with a mass of .52 kg will have the greatest acceleration.
• They will both accelerate at the same rate.

A 20 kg bike accelerates at 10 m/s².  what was the force?

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

Unit of mass

• m/s 2
• m/s
• newtons
• kg

The mass of a car is 1000 kg.  How much force would be required to accelerate the car at a rate of 3 m/s²? 

• 1000 ÷ 3
• 3 ÷ 1000
• 1000 x 3

A force of 250 N is applied to an object that accelerates at a rate of 5 m/s².  What is the mass of the object? To solve this problem you must do - 

• 250 ÷ 5
• 5 ÷ 250
• 250 x 5

A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object. To solve this problem you must do - 

• 32 ÷ 5
• 5 ÷ 32
• 32 x 5

A skier needs to apply a force of 132 N to accelerate at a rate of 2 m/s². What is the mass of the skier? The answer to this question is most likely (HINT: Look at the units!!!) - 

• 66 N
• 66 m/s²
• 66 kg

A force of 90N is applied to each cart below, which one will accelerate the fastest?

• Cart 1
• Cart 2
• Cart 3 
• Cart 4

To calculate Force

• _{Force = m x a}

• Force _{= m ÷ a}

• Force _{= a ÷ m}

• Force _{= m + a}

To calculate m

• m = Force × a

• m = Force ÷ a

• m = Force + a

• m = a ÷ Force