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Example:. Example:. http ://www.youtube.com/watch?v=K7HG0-_WPqk. Ex. Spherical Ballooon. A spherical balloon is being inflated. What is the rate of increase (change) of the surface area with respect to the radius when ?. Ex. Leaky Oil Tank.
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Example: • http://www.youtube.com/watch?v=K7HG0-_WPqk
Ex. Spherical Ballooon • A spherical balloon is being inflated. What is the rate of increase (change) of the surface area with respect to the radius when ?
Ex. Leaky Oil Tank • An oil tank holds 2000 liters of oil, which drains from the bottom of the tank in 30 minutes. The volume of oil remaining in the tank after minutes is At what rate is the oil draining from the tank?
Ex. Rock and Cliff • upwards • Rock experiences gravitational force from the moment it leaves the hand • Since is towards the ground (ie. Opposite direction of motion) velocity begins to reduce immediately • At some time , velocity becomes zero & rock begins to fall back down • From this time () on, acceleration is in the same direction as motion & so velocity increases.