Two Dimensional Motion

The x acceleration of a projectile is always...

• positive

• negative

• zero

A trucker drives with an average velocity of 27 m/s towards the east on a perfectly straight highway. What will the trucker's displacement be after 2 mins?

• 97 m; east

• 190 m; east

• 1600 m; east

• 3240 m; east

The SI unit for acceleration is

• mph

• ft/sec²

• m/s²

How could a jogger accelerate?

• run uphill then downhill

• run 10 miles N then run 10 miles back

• jog, stop, rest, start again

• speed up, slow down, turn corners

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Displacement must always be measured from

• the y-axis.

• a reference point.

• infinity

• the current position of an object.

A car traveling in a northeasterly direction at a rate of 50 km/h represents which of the following?

• speed

• velocity

• acceleration

• deceleration

Find the velocity of a truck that travels 75 miles north in 2.5 hours.

• 187.5 mph north

• 30 mph north

• 300 mph north

• 200 mph north

Tags

NGSS.MS-PS3-1

Pepita is an Alebrije who appears in the 2017 film Coco. If she flies at 15 m/s for 30 seconds, how far will she travel?

• 450 m

• 2 m

• 0.5 m

• 33.54 m

Tags

NGSS.MS-PS3-1

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

Nzingha Prescod is an American fencer. The tip of a fencing sword can move 173 cm in 0.05 seconds. What is the speed?

• 34.6 m/s

• 0.09 m/s

• 0.03 m/s

• 178 m/s

Tags

NGSS.MS-PS3-1