Kinematic Equations

A car is traveling to the right with a speed of 29​​m/s when the rider slams on the accelerator to pass another car. The car passes in 110 m with constant acceleration and reaches a speed of 34m/s. We want to find the acceleration of the car as it sped up. What equation should you choose?

• v_f=v_i+at

• d=v_it+1/2at²

• v_f²=v_i²+2ad

• d=((v_f+v_i)/2)t

An airplane accelerates down a runway at 3.20 m/s² for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

Which equation is appropriate?

• v_f=v_i+at

• d=v_it+1/2at²

• v_f²=v_i²+2ad

• d=((v_f+v_i)/2)t

An object with an initial velocity of 3.50 m/s moves east along a straight and level path. The object then undergoes a constant acceleration of 1.80 m/s² east for a period of 5.00 s. How far does the object move while it is accelerating?

• 6.30 m
• 17.5 m
• 27.2 m
• 40.0 m

Tags

NGSS.HS-PS2-1

What happens to the velocity of a ball as it is dropped off a cliff? 

• It decreases at a uniform rate 
• It increases at a uniform rate 
• It is constant 
• It increases at a non-uniform rate

Tags

NGSS.HS-PS2-1

How long would it take a car, starting from rest and accelerating uniformly in a straight line at 5 m/s², to cover a distance of 200m

• 9.0s

• 10.5s

• 12.0s

• 15.5s

Tags

NGSS.HS-PS2-1

A boat travels 12.0 m while it reduces its velocity from 9.5 m/s to 5.5 m/s. What is the magnitude of the boat’s acceleration while it travels the 12.0 m?

• -1.3 m/s²

• -2.5 m/s²

• -3.0 m/s²

• -7.5 m/s²

Kinematic equation can only be used when you have a constant ....

• Position

• Velocity

• Acceleration

• Time

Tags

NGSS.HS-PS2-1

A change in velocity over time is known as:

• acceleration
• constant speed
• average speed
• displacement

Tags

CCSS.8.EE.C.7B

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

Tags

NGSS.MS-PS3-1

A dog basks in the sun when he sees a squirrel and bolts after it. If the dog accelerates at +1.6 m/s/s, how far does he run in 3 seconds?

• 4.8 meters

• 45 meters

• 1.6 meters

• 7.2 meters

Tags

NGSS.HS-PS2-1