A man moving in a straight line to the north travels 6 meters between the time t = 0 and the time t = 2 s. In the same time interval, its velocity decreases by 2 m/s.
Which of the following statements is correct?

Question

A man moving in a straight line to the north travels 6 meters between the time t = 0 and the time t = 2 s. In the same time interval, its velocity decreases by 2 m/s. 
  Which of the following statements is correct?

Accepted Answer

(c)  The average acceleration is southward

Answer

(b)  There is necessarily an instant, within the interval of time considered, in which man is stationary

Answer

(e)  The speed is always directed southwards because it slows down

Answer

(a)  Its average acceleration is

Answer

(d)  The final velocity is zero

Crowdly

A man moving in a straight line to the north travels 6 meters between the time t...

Want instant access to all verified answers on exercise.polito.it?