Register
A vehicle is traveling at a velocity of 30 meters per second. Exactly 5 seconds later, its velocity has changed by a factor of 0.6. What was the vehicles average acceleration over that time period?
4.6k views
0 votes
A vehicle is traveling at a velocity of 30 meters per second. Exactly 5 seconds later, its velocity has changed by a factor of 0.6. What was the vehicles average acceleration over that time period?

User Harsh Sureja
by
4.5k points

1 Answer

5 votes

Answer:

-2.4 m/s²

Step-by-step explanation:

avg accel = Δv/Δt

v-i = 30 m/s

v-f = (30 m/s)(0.60) = 18 m/s

Δt = 5.0 sec

avg accel = (18 m/s - 30 m/s) / 5.0 s = (- 12 m/s) / 5 s = -2.4 m/s²

negative sign means it's slowing down

User Hampo
by
5.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.2m questions

6.7m answers

Other Questions

A space shuttle is approaching the surface of the moon to land. It approaches the moons surface with an initial velocity of 28m/s and is slowing at a rate of -2m/s^2. Show all work and units for problems.
________ is a measure of the internal energy that has been absorbed or transferred from one body to another, often due to a difference in temperature.
5. What happens to the arrangement of water molecules as ice melts? A Molecules gain enough energy to escape as vapor. B Molecules release enough energy to escape as vapor. C Molecules gain enough energy
A projectline is shot from the edge of a cliff 100 m above the ground with intial speed 10 m/s at an angle 30 with the horizontal. 1) determine the time taken by the projectile motion to hit the ground
You’re on a team performing a high-magnetic-field experiment. A conducting bar carrying 4.1 kA will pass through a 1.3-m-long region containing a 12-T magnetic field, making a 60° angle with the field.
Link Copied!