Question
1. A ball is thrown 15 m/s at an angle of 60. How high does the ball go?
2. A ball rolls off a table going 8 m/s. If the table is 1.8 m tall, how far away does the ball land?
2. A ball rolls off a table going 8 m/s. If the table is 1.8 m tall, how far away does the ball land?
Answers
Henry
1. Vo = 15m/s[60o].
Yo = 15*sin60 = 13 m/s.
Y^2 = Yo^2 + 2g*h.
0 = 13^2 - 19.6h. h = ?.
2. h = 4.9*t^2. 1.8 = 4.9t^2, t = ?.
d = V*t. d = 8*t.
Yo = 15*sin60 = 13 m/s.
Y^2 = Yo^2 + 2g*h.
0 = 13^2 - 19.6h. h = ?.
2. h = 4.9*t^2. 1.8 = 4.9t^2, t = ?.
d = V*t. d = 8*t.
Ayasha
what does a sharp shadow tell us about the way light travels