Help with a, b, and c please.

1. [6 pts] Particle A moves along a horizontal line with velocity v(t), where v(t) is a positive continuous function of t. The time t is measured in cm/sec. The velocity of the particle at selected times is given in the table. (sec) 5 10 v(t) (cm/sec) 1.7 6.8 7.4 15.6 24.9 a) Use the data from the table to approximate the distance traveled by a particle A over the interval 0 S t s 10 seconds by using a left Riemann Sum with four subintervals. Show the computations that lead to your answer . b) Assuming that v(t) is a continuous increasing function, is the approximation greater or less than the true value? c) Particle B moves along the same horizontal line with position x(t) = tesinst. Which particle is traveling faster at time t = 5? Explain your