Homework 4 MTTT

1. The electric power in watts(W) produced by a source is given by

Where r is the resistance in ohms in the circuit. Find the value of r that provides the maximum power.

2. A particle moves along a straight line according to 

Where s is the distance in meters and t is the time in seconds. Find the approximate distance covered by the particle between 3.00 s and 3.05 s.