A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. The ball leaves her hand 1.00 m above the ground. What is the magnitude of the ball's velocity just before it hits the ground?
A)
1.22 m/s
B)
6.79 m/s
C)
7.45 m/s
D)
9.14 m/s
E)
4.58 m/s
D
You might also like to view...
What is the efficiency of an ideal Carnot engine operating between a reservoir in which ice and water coexist, and a reservoir in which water and steam coexist? The pressure is constant at 1.0 atm for both reservoirs
A) 27% B) 0.27% C) 100% D) 1.0% E) 15%
Saturn's rings appear to be brighter and younger than the dirty, dark rings around Uranus and Neptune
Indicate whether the statement is true or false
Person X pushes twice as hard against a stationary brick wall as person Y. Which one of the following statements is correct?
A) Both do positive work, but person X does four times the work of person Y. B) Both do positive work, but person X does twice the work of person Y. C) Both do the same amount of positive work. D) Both do zero work. E) Both do positive work, but person X does one-half the work of person Y.
For an observer at 30° N latitude, what is the maximum angle between the observer's southern horizon and the moon?
a. 30° b. 53.5° c. 58.5° d. 83.5° e. 88.5°