The steel I-beam in the drawing has a weight of 6.43 * 10^3 N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends

T = 6.43 x 10^3 N

Explanation:

As we know, T = w where w = 6.43 * 10^3 N So,

T = 6.43 * 10^3 N

(If the velocity is constant tension in the string is always equals to the hanging weight where weight can be calculated by mass and gravity as w = mg)

with 5 seconds, no, but over time if the police car stays at 65m/s ad the speeding car stays at 60, then obviously yes, but the answer to your question would be, no.

hope this : )

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s