An object moved on the xaxis from point A to point B, turned around and moved to point C in2seconds. Assume direction towards the right as the positive direction. The coordinates of A, B, and C are given as xA=6m, xB=11m, and xC=2m respectively.

What is the average speed in m/s?

The position of a particle at different times is given as follow:

t=2.000s, x=0.73871m;

t=2.001s, x=0.73944m;

t=2.002s, x=0.74018m;

t=2.003s, x=0.74092m;

t=2.004s, x=0.74166m;

t=2.005s, x=0.74241m;

t=2.006s, x=0.74315m;

t=2.007s, x=0.74389m;

Give the best estimate on the particle's velocity at t=2.000s.

car is moving forward with a constant acceleration of0.15m/s2. It enters a tunnel at a speed of8m/s and comes out of it at27m/s.

How long is the tunnel, in meter?

It takes how long for the car to go through the tunnel, in s?

Car racer Kyle Larson starts his car from rest and accelerates in the +x direction with a constant acceleration of a1 =1.3m/s2 over a distance of x =51m. At that point Kyle notices a tree limb blocking the road and steps on the brake. The car slows down and comes to a complete stop after braking for t =1.5s.

What is the car's speed just before Kyle begins braking, in m/s?

If the limb is180meters from where Kyle starts his car from rest, how far (in meters) will the car stop in front of the limb?

Answer rating: 100% (QA)

To calculate the average speed we can use the formula Average speed Total distance Total time In this case the object moved from point A to point B and then from point B to point C We need to calculat... View the full answer