Vectors&Projectiles Review

A car travels 90 meters north. Then the car turns around and travels 40 meters south.  What is the magnitude and direction  of the car's resultant displacement?  

• 40 metres, South
• 50 metres, South
• 50 metres, North
• 40 metres, North 

Tags

112.39.c.4.B

Which statement describes a vector?

• It has magnitude but no direction
• It has direction but no magnitude
• It has both direction and magnitude
• It has constant magnitude but no
   direction

Tags

112.39.c.4.C

112.39.c.4.B

In this figure, what is  the magnitude of the  resultant displacement?

• 5 km 
• 8 km
• 11 km
• 15 km

Tags

112.39.c.4.D

What is the sum of multiple vectors called?

• Scalar

• Vector Combination

• Resultant Vector

• Force

Tags

112.39.c.4.D

The magnitude of the resultant is equal to......

• 2500m

• 800m

• 50m

• 70m

Tags

112.39.c.4.D

A ball rolls off a cliff with a horizontal velocity of 8.0 m/s. The cliff is 64 m high. How far from the cliff will the ball land?

• 28.9 m

• 9.8 m

• 3.6 m

• 512 m

Symbol for horizontal velocity

• Vx

• dx

• Vy

• dy

Tags

112.39.c.4.D

symbol for horizontal displacement

• Vx

• dx

• Vy

• dy

Tags

112.39.c.4.D

For projectiles launched at an angle, this is equal to zero at the top of the trajectory.

• Vx

• Vy

• a

• dy

Tags

112.39.c.4.D

For projectiles, this is constant if we ignore air resistance.

• dx

• Vx

• Vy

• dy

Tags

112.39.c.4.D