Question

Problem Set 1: Problem 2 Previous Problem Problem List Next Problem x (m) (1 point) t (s) 3 The motions of two cheetahs, represented by P and Q, are described by the position-time graphs shown at velocity? A. P and Q have the same velocity at 1 s and 3 s. B. P and Q have the same velocity at 2 s OC. P and Q never have the same velocity. D. P and Q have the same velocity at 3 s E. P and Q have the same velocity at 1 s, 2 s, and 3 s. Preview My Answers Submit Answers

Answer 1

Velocity is given by $\frac{dx}{dt}$ , i.e. the slope of the distance vs time graph. As graphs P and Q are nearly parallel at 2sec, that implies that they have similar slope hence similar velocity at 2 second.

And: B