Ask a professional or bring it to a lab to have it tested.
We can solve for the acceleration by using a kinematic equation. First we should identify what we know so we can choose the correct equation.
We are given an original velocity of 24 m/s, a final velocity of 0 m/s, and a time of 6 s. We and looking for acceleration (a) in m/s^2.
The following equation has everything we need:
So plug in the known values and solve for a:
0 = 24 + 6a
-24 = 6a
a = -4 m/s^2
Answer:
T=3.29 N
Explanation:
let V be the speed at low point
From conservation of energy
0.5mV²=m*g*l*(1-cos(∅))
(mV²/l)=2m*g*(1-cos(∅))
Nowat low point
T-mg=mV²/l
T=mg+2mg((1-cos(∅))
T=mg(3-2cos(∅))
T=0.25*.81*(3-2cos(34))
T=3.29 N
b) 4m/s/s
This is because you divide the speed you reach, by the time it takes to get to that speed:
12m/s ÷ 3s = 4m/s/s
The units come from what you divide, meters per second ÷ seconds this can be written as m/s/s or ms-²
Answer:
The Chinese began experimenting with the gunpowder-filled tubes. At some point, they attached bamboo tubes to arrows and launched them with bows. Soon they discovered that these gunpowder tubes could launch themselves just by the power produced from the escaping gas. The true rocket was born.
Explanation: