IB Physics Adding Vectors

Vector is a quantity with:

• magnitude and direction

• magnitude

• direction

• none of the above

In practice A of the figure, What is  the magnitude of the  resultant displacement?

• 5 km 
• 8 km
• 11 km
• 15 km

A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due 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 

Is this a scalar quantity or a vector quantity?
Wind blowing at 20 knots

• Scalar
• Vector

If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?

• 20m
• 40m
• 0m
• -20m

What is the Net Force?

• 5 N to the right
• 10 N to the right
• 15 N to the right
• 0 N

Tags

NGSS.HS-PS2-1

The president’s airplane, Air Force One, flies at 250 m/s to the east with respect to the air. The air is moving at 35 m/s to the north with respect to the ground. Find the velocity of Air Force One with respect to the ground.

• 252 m/s
• 222 m/s
• 435 m/s
• 125 m/s

A fishing boat with a maximum speed of 3 m/s relative to the water is in a river that is flowing at 2 m/s. What is the minimum speed the boat can obtain relative to the shore? 

• 1 m/s
• 5 m/s
• 3.6 m/s
• 4.5 m/s

A motorboat velocity is 20 km/h in still water. If the boat must travel straight to the nearest shore in a river whose current is 12 km/h, What up stream angle must the bow boat point at? (hints: you know the opposite and resultant sides of your right triangle here).

• 46 degrees upsteam
• 37 degrees upstream
• 22 degrees upstream
• 42 degrees upstream

Tags

NGSS.HS-PS2-1

Vector F in the x-component is ....

• F sin 30^o

• F cos 30^o

• F sin 60^o

• F tan 60^o

Tags

NGSS.HS-PS2-1