Is this a question or a statement. This statement would be incorrect. <span />
Using the kinematic equation,
v = u + at
26 = 11 + 3t
15 = 3t
t = 5 seconds.
Time required is 5 seconds.
In physical terms, a force does work if it moves an object in the direction the force is pointing towards.
In your example, the force is pushing a tray up. But the force doesn't move the tray any further up. It remains at the same height.
The is no force done by this force.
Answer:
0.09 m/s²
Explanation:
Acceleration: This can be defined as the rate of change of velocity.
The S.I unit of acceleration is m/s².
From the question, expression for acceleration is given as
F' = ma
Using Pythagoras Theory,
√(F₁²+F₂²) = ma................... Equation 1
Where F₁ = Force of the First person on the boulder, F₂ = Force of the Second person on the boulder, F' = resultant force acting on the boulder, m = mass of the boulder, a = acceleration of the boulder.
make a the subject of the equation
a = √(F₁²+F₂²) /m................ Equation 2
Given: m = 825 kg, F₁ = 64 N, F₂ = 38 N,
Substitute into equation 2
a = [√(64²+38²)]/825
a = {√(5540)}/825
a = 74.43/825
a = 0.09 m/s²
Answer:
<em />
<em>a. When you are pressing downwards</em><u><em> the energy stored is potential elastic energy due to the elasticity of the stretchy skin.</em></u><em>
</em>
<em>
</em>
<em> </em>
<em>
</em>
<em>b. When you are high up in the air </em><u><em>the energy stored is potential energy due to your weight and the distance to the ground.</em></u>
<em />
<em>Hope this Helps!</em>
<em />
<em>If you have Any questions Please Ask.</em>
