Modeling Forces with Free Body Diagrams

How many students are involved in the tug of war?

• Two

• Three

• Four

• Five

What are the forces exerted by the two students pulling to the left?

• 36 and 38 Newtons

• 35 and 36 Newtons

• 36 and 37 Newtons

• 35 and 38 Newtons

Tags

NGSS.MS-PS2-2

What is the force exerted by the student pulling to the right?

• 36 Newtons

• 38 Newtons

• 35 Newtons

• 40 Newtons

Tags

NGSS.HS-PS2-1

What is the purpose of creating a free body diagram in this problem?

• To visualize the forces acting on the rope

• To determine the weight of the students

• To measure the length of the rope

• To calculate the speed of the rope

Which label is given to the force exerted by the student pulling to the right?

• T1

• T2

• T3

• T4

Tags

NGSS.HS-PS2-1

According to Newton's second law, what is the sum of the forces equal to?

• Mass times velocity

• Force times time

• Mass times acceleration

• Force times distance

Tags

NGSS.MS-PS2-2

What is the net force acting on the rope?

• 35 Newtons

• 39 Newtons

• -39 Newtons

• 0 Newtons

Tags

NGSS.MS-PS2-2

What is the mass of the rope?

• 20 kg

• 5 kg

• 10 kg

• 15 kg

What is the calculated acceleration of the rope?

• 3.9 m/s²

• 3.8 m/s²

• 3.5 m/s²

• 4.0 m/s²

Tags

NGSS.MS-PS2-2

In which direction does the rope accelerate?

• To the right

• Downwards

• To the left

• Upwards