A runner sprints around a circular track of radius 150 m at

A runner sprints around a circular track of radius 150 m at a constant speed of 7 m/s. the runner\'s friend is standing at a distance 300 m from the center of the track. How fast Is the distance between the friends changing when the distance between them is 300 m? (Round your answer to two decimal places.) The minute hand on a watch Is 7 mm long and the hour hand is 5 mm long. How fast Is the distance between the tips of the hands changing at one o\'clock? (Round your answer to one decimal place.) A ladder 28 feet long leans against a wall and the foot of the ladder is sliding away at a constant rate of 3 feet/sec. Meanwhile, a firefighter is climbing up the ladder at a rate of 2 feet/sec. When the firefighter has dimbed up 6 feet of the ladder, the ladder makes an angle of pi / 3 with the ground. Answer the two related rates questions below. If h is the height of the firefighter above the ground, at the instant the angle of the ladder with the ground is pi / 3, find dh/dt

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