Physics 1

During a race on level ground, Andra runs with an average velocity of

6.02 m/s to the east.What is Andra’s displacement after 137 s?

X= (V)(t)

• 885m to the east

• 825m to the east

• 653m to the east

• 825m to the west

Simpson drives his car with an average velocity of 48.0 km/h to the east.

How long will it take him to drive 144 km on a straight highway?

t= ΔX÷V

• 3 h

• 5 h

• 4 h

• 3.5 h

A shuttle bus slows down with an average

acceleration of −1.8 m/s². How long does it take the bus to slow

from 9.0 m/s to a complete stop?

Δt= V_f − V_i ÷ a_avg

• 5 km

• 5 m

• 5 m/s

• 5 s

A car traveling at 7.0 m/s accelerates uniformly at 2.5 m/s² to reach a speed of

12.0 m/s. How long does it take for this acceleration to occur?

Δt = V_f − V_i ÷ a_avg

• 0.5 s

• - 2 s

• 2.2 s

• 2 s

A racing car reaches a speed of 42 m/s. It then begins a uniform negative

acceleration, using its parachute and braking system, and comes to rest

5.5 s later. Find the distance that the car travels during braking.

Δx = 1/2 (V_i+ V^_f )Δt

• 122 m

• 120 m

• 105 m

• 113 m

A robot probe drops a camera off the rim of a 239 m high cliff on Mars, where the

free-fall acceleration is −3.7 m/s².

Find the velocity with which the camera hits the ground.

V= √ 2aΔy

• 41 m/s

• - 42 m/s

• 42 m/s

• 34 m/s

A flowerpot falls from a windowsill 25.0 m above the sidewalk.

How fast is the flowerpot moving when it strikes the ground?

V=√2aΔy

• 21 km/s

• 22 m

• 23 m/s

• 22.1 m/s

A truck driver is attempting to deliver some furniture. First, he travels 8 km east,

and then he turns around and travels 3 km west. Finally, he turns again and travels

12 km east to his destination.

What distance has the driver traveled?

• 17 Km

• 23 m

• 23 Km

• 13 Km

A truck driver is attempting to deliver some furniture. First, he travels 8 km east,

and then he turns around and travels 3 km west. Finally, he turns again and travels

12 km east to his destination.

What is the driver’s total displacement?

• 17 Km to the east

• 17 Km to the north

• 23 km to the east

• 23 km south

While following the directions on a treasure map, a pirate walks 45.0 m north and

then turns and walks 7.5 m east. What single straight-line displacement could the

pirate have taken to reach the treasure?

d = √ Δx² + Δy²

Θ = tan^-1 (Δx / Δy)

• 45.6 m at 9.5° west of south

• 36 m at 15° east of north

• 49.6 m at 10.5° east of north

• 45.6 m at 9.5° east of north