Investigation 1 Acceleration

While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the car's acceleration?   ________ m/s/s
Acceleration = final velocity - initial velocity / time. 

*Remember a negative value = slowing down*

A parachute on a racing dragster opens and changes the speed of the car from 85 m/s to 45 m/s in a period of 4.5 seconds. What is the acceleration of the dragster?

______ m/s/s

Acceleration = final velocity - initial velocity / time.

*Remember a negative value = slowing down*

A ball starting from rest rolls down a hill. After 10 seconds it's speed is 15 m/s. What is the acceleration of the ball?

________ m/s

Acceleration = final velocity - initial velocity / time.

A car traveling at a speed of 30.0 m/s encounters an emergency and comes to a complete stop. How much time will it take for the car to stop if it decelerates at -4.0 m/s/s?

_______ seconds

Time = final velocity - initial velocity / acceleration.

If a car can go from 0 to 60 in in 8.0 seconds, what would it's final speed be after 5.0 seconds if its starting speed were 50 mi/hr.

1st step: Acceleration = final velocity - initial velocity / time

2nd step: Final Velocity = initial velocity + (acceleration x time)

A cart rolling down an incline for 5 seconds has an acceleration of 4.0 m/s2. If the cart has a beginning speed of 2.0 m/s, what is the final speed

________ m/s

Final velocity = initial velocity + (acceleration x time)

A helicopter's speed increases from 25 m/s to 60 m/s in 5 seconds. What is the acceleration of this helicopter?

_______ m/s/s

acceleration = Final velocity - initial velocity / Time

As she climbs a hill, a cyclist slows down from 25 mi/hr to 6 mi/hr in 10 seconds. What is her deceleration. (Remember deceleration is simply negative acceleration.)

________ mi/hr

Acceleration = final velocity - initial velocity / time

Tags

NGSS.HS-PS2-1

A motorcycle traveling at 25 m/s accelerates at a rate of 7 m/s/s for 6 seconds. What is the final speed of the motorcyle? __________m/s

Final speed = initial velocity + (Acceleration x time)

A car starting from rest accelerates at a rate of 8.0 m/s/s. What is its final speed a the end of 4 seconds?

________m/s

Final Speed = initial velocity + (Acceleration x Time)