Answer to Question #98887 in Physics for Khalid

Question

A dog walking to the right at 1.5 m/s speeds up to chase a cat with a constant acceleration of 12 m/s2.
What is the velocity of the dog after speeding up for 3 m?

Answer 1

We have:

$$V^2-v^2=2as$$

$$V^2-1.5^2=2(12)(3)$$

$$V=8.6\frac{m}{s}$$