A tennis player standing 12.6 m from the net hits the ball at 3.00° above the horizontal. To clear the net, the ball must rise at least 0.330 m. If the ball just clears the net at the apex of its trajectory, how fast was the ball moving when it left the racket?
48.6 m/s
You might also like to view...
Resistance and Resistivity: A wire of resistivity ? must be replaced in a circuit by a wire of the same material but four times as long. If, however, the total resistance is to remain as before, the diameter of the new wire must
A. be the same as the original diameter. B. be one-half the original diameter. C. be one-fourth the original diameter. D. be two times the original diameter. E. be four times the original diameter.
How many kilocalories of heat would be needed to melt 0.12 kg of ice at 0°C and increase the temperature to 25°C?
The apparent angular shift of any object across a distant background, when viewed from two different places, is called ________ shift
Fill in the blank(s) with correct word
What is the period (in hours) of a satellite circling Mars 100 km above the planet's surface?
The mass of Mars is 6.42 × 1023 kg, its radius is 3.40 × 106 m, and G = 6.67 × 10-11 N ? m2/kg2. A) 1.45 h B) 1.00 h C) 1.15 h D) 1.25 h E) 1.75 h