Answer and Explanation:
- Should let force applied throughout horizontal direction become "F", as well as the displacement of that same sled, become "d." This same force's work seems to be "Fd."
- Presently, unless the mass would be doubled as well as the force is applied continues to remain the very same, the work used by the force to keep moving the sled by such the distance "d" would then remain the same.
So that the above seems to be the right answer.
Answer:
Explanation:
if you bounce a tennis ball, it will come back up as an equal reaction to your action (dropping it). there is an equal but opposite reaction in this scenario, demonstrating newton's third law.
Answer:
a) 3.36 sec
b) 23.9 m/s
c) 1.52 sec
Explanation:
maximum height
H = 25 +v_y^2/2g
H=25+9^2/2*9.81 =29.13 m
time taken to reach maximum height = t_1 =v_y/g = 9/9.81 =0.92 seconds
time taken to fall back to ground from maximum height = √(2gH)/g
= √(2*9.81*29.13)/9.8 = 2.439 seconds
a) Total time taken to reach ground T = t_1+t_2 =0.92+2.439=3.36 sec
b) objects final speed = √2gH = 23.9 m/s
c) let total time be t then
25 = 9t +0.5gt^2
Solving we get t= 1.52 seconds
Heat!!!!!!!!!!!!!!!!!!! sorry about the exclamation marks but it wont let me post in less it has more than 20 characteristics
Earth revolving around the sun occurs at approximately one degree per day