# Physics

In a performance test, each of two cars takes 9.4 s to accelerate from rest to 24 m/s. Car A has a mass of 1358 kg, and car B has a mass of 2014 kg. Find the net average force that acts on (a) car A and (b) car B during the test.

1. 👍 0
2. 👎 0
3. 👁 283
1. (Average force)*time = (Momentum change) = (Mass)*(Velocity)

For car A, Fav = 1358*24/9.4 = __ N

Use the same formula for car B, but with the different mass.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Physics

You are stopped at the end of the merge lane at the entrance to a motorway because traffic is dense with cars at a distance of 200m from each other with no larger gaps in sight. They are all travelling at a steady 87 km/h. You

2. ### physics

Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 4.6 m/s2 for 4.4 seconds. It then continues at a constant speed for 8.5

3. ### Physics

Can someone help me with these questions? I don't want the answers just some direction in how to solve them. A motorcycle at a stoplight takes 4.22 seconds to accelerate to 28.0 m/s after the light turns green. What is its average

4. ### physics

High-performance race cars can accelerate from 0 m/s to 27 m/s (60 mi/h) in about 4 s. To see how large the acceleration due to gravity is, determine the time required for an object dropped from rest to attain a speed of 27 m/s.

1. ### algebra

The Big Screamer Coaster carries 92 people altogether. Some of its cars carry 4 passengers, and the rest carry 6 passengers. There are three less 6-passenger cars than 4-passenger cars. How many 4-passenger cars are there?

2. ### Physics Help

1) two cars start at the same location and accelerate for the same amount of time. if one car has twice the acceleration of the other, how will the final speeds of the cars compare? by how much farther will the faster car

3. ### stats

identify the independent and dependent variable A group of college students were given a short course in speed-reading. The instructor was curious if a monetary incentive would influence performance on a reading test taken at the

4. ### PHYSICS

A car, moving along a straight stretch of highway, begins to accelerate at 0.024 m/s 2 . It takes the car 61.8 s to cover 1 km. How fast was the car going when it first began to accelerate?

1. ### physics

The shark can accelerate to a speed of 32.0 km/h in a few seconds. Assume that it takes a shark 1.5 s to accelerate uniformly from 2.8 km/h to 32.0 km/h. What is the magnitude of the shark's acceleration?

2. ### Physics

It is friction that provides the force for a car to accelerate, so for high performance cars the factor that limits acceleration isn't the engine; it's the tires. For typical rubber-on-concrete friction, what is the shortest time

3. ### Physics

You are stopped at the end of the merge lane at the entrance to a motorway because traffic is dense with cars at a distance of 200m from each other with no larger gaps in sight. They are all travelling at a steady 90 km/h. You

4. ### Physics

9)A car, moving along a straight stretch of highway, begins to accelerate at 0.0153 m/s 2 . It takes the car 29.2 s to cover 1 km. How fast was the car going when it ﬁrst began to accelerate? Answer in units of m/s