Two Dimensional Motion

As the angle between this vector

and the horizontal axis is increased

from 15 to 90 degrees, what happens

to the magnitude of its vertical component?

• Increases

• Decreases

• Stays the Same

Which pair of forces could produce

a resultant of 8 N?

• 10 N and 19 N

• 6 N and 1 N

• 10 N and 15 N

• 24 N and 33 N

Tags

NGSS.HS-PS2-1

Find the magnitude and direction of the

equilibrant for the following system of forces.

(Remember the equilibrant is the force that brings the system into equilibrium)

• 20 N northeast

• 20 N southwest

• 28.28 N northeast

• 28.28 N southwest

Tags

NGSS.HS-PS2-1

The picture shows three horizontally launched projectiles. All of the objects are launched from the same height at the same time but with different velocities. Which horizontally launched projectile lands first?

• The projectile which is launched at speed v1

• The projectile which is launched at speed v2

• The projectile which is launched at speed v3

• All three projectiles land at the same time

A lucky penny is tossed horizontally

with a velocity of 15 m/s from a

height of 100. m above the ground.

How long will it take the penny to hit

the ground?

• 1.5 s

• 2.5 s

• 4.5 s

• 20.5 s

Tags

NGSS.HS-PS2-1

A cannon ball is launched horizontally off a cliff with a velocity of 4 m/s. The cliff is 20 m high. Approximately how far from the base of the cliff, does the cannon ball land?

• 2 m

• 4 m

• 6 m

• 8 m

Tags

NGSS.HS-PS2-1

At what angle from the horizontal

must a projectile be launched in

order to achieve the greatest range?

• 30 degrees

• 45 degrees

• 60 degrees

• 90 degrees

At what angle from the horizontal

must a projectile be launched in

order to achieve the maximum

flight time?

• 30 degrees

• 45 degrees

• 60 degrees

• 90 degrees

How does the maximum altitude and

horizontal distance of a projectile change as the launch angle is increased from 30 to 45

degrees?

• Both the horizontal distance traveled and the maximum altitude reached will increase

• Both the horizontal distance traveled and the maximum altitude will decrease

• The projectile will travel a greater horizontal distance but the maximum altitude it reaches will decrease

• The projectile will travel a shorter horizontal distance but the maximum altitude it reaches will increase

Tags

NGSS.HS-PS3-2

Calculate the component of the box's weight parallel to the incline if it has a mass of 2 kg and ɵ= 30 degrees

• 4.9 N

• 9.8 N

• 17 N

• 19.6 N

Tags

NGSS.HS-PS2-1