Answer:
Explanation:
Use the one-dimensional equation
where v is the final velocity, v0 is the initial velocity, a is the acceleration, and t is the time it takes to reach that final velocity. We are solving for t. Filling in the other values:
0 = 28 + (-6.4)t and
-28 = -6.4t so
t = 4.4 seconds
A projectile is any object that is thrown, dropped or otherwise laughed into the air.
1) If it is dropped - it's motion is caused by just gravitation force
2) if it is thrown - it's motion is caused by gravitation force + force you applied to though it upwards
Answer:
a = 4.9(1 - sinθ - 0.4cosθ)
Explanation:
Really not possible without a complete setup.
I will ASSUME that this an Atwood machine with two masses (m) connected by an ideal rope passing over an ideal pulley. One mass hangs freely and the other is on a slope of angle θ to the horizontal with coefficient of friction μ. Gravity is g
F = ma
mg - mgsinθ - μmgcosθ = (m + m)a
mg(1 - sinθ - μcosθ) = 2ma
½g(1 - sinθ - μcosθ) = a
maximum acceleration is about 2.94 m/s² when θ = 0
acceleration will be zero when θ is greater than about 46.4°
Answer:
See the anwers below
Explanation:
To solve this problem we must understand that the weight of any![W = 0.1*10\\W = 1 [N]](https://tex.z-dn.net/?f=W%20%3D%200.1%2A10%5C%5CW%20%3D%201%20%5BN%5D)
body is defined as the product of mass by gravitational acceleration. Gravitational acceleration depends on the place in space where a certain body is located.
where:
W = weight [N]
m = mass = 100 [g] = 0.1 [kg]
g = gravity acceleration [m/s²] or [N/kg]
<u>Now for the Earth</u>
<u />![W =m*g\\W =0.1*10\\W = 1[N]](https://tex.z-dn.net/?f=W%20%3Dm%2Ag%5C%5CW%20%3D0.1%2A10%5C%5CW%20%3D%201%5BN%5D)
<u />
<u>For the Moon</u>
<u />![W = m*g\\W =0.1*1.6\\W = 0.16 [N]](https://tex.z-dn.net/?f=W%20%3D%20m%2Ag%5C%5CW%20%3D0.1%2A1.6%5C%5CW%20%3D%200.16%20%5BN%5D)
<u />
Answer: An exercise, activity, or workout that targets a specific training need Progression - Gradually increasing your skill level and ability over time Overload -Working your body harder than usual to improve how it functions Reversibility - Losing what you have gained by taking time off Tedium - getting bored by doing the same thing
Explanation:
