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Q1. A spherical Balloon is inflated at the rate of 144 pie cubic inches per minute (in^3/min). Find out how rapid is the radius of the balloon changing if the radius is 4 inches?

Q2. A projectile is launched upward vertically with an initial velocity of 20ft/sec from the top of 50 foot building?

a) prepare down an equation of H (t) which describes the height of the projectile after t seconds?

b) When will the projectile hit the ground?

c) When does the projectile reach its utmost height?

d) Find out the maximum height?

• Category:- Physics
• Reference No.:- M99903

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