What is the initial speed of the second ball

Reference no: EM1322093

Q1. A ball thrown straight upward returns to its original level in 2.5 s a second ball is thrown at an angle of 36 degrees above the horizontal. What is the initial speed of the second ball if it also returns to its original level in 2.5 s?

Q2. The pilot of an aircraft wishes to fly due west in a 34.60 km/h wind blowing toward the south. The speed of the aircraft in absence of a wind is 145 km/h.

what must its speed relative to the ground be?

Reference no: EM1322093

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