<em>≈ 0.47 m/s²</em>
<em>Hi there !</em>
<em>Acceleration formula</em>
<em>a = (v₂ - v₁)/t</em>
<em />
<em>a = (26.8m/s - 24.8m/s)/4.3s</em>
<em>= (2m/s)/4.3s</em>
<em>≈ 0.47 m/s²</em>
<em>Good luck !</em>
<span> The
failure of the anchovy harvest in 1972 was blamed on El Niño.</span>
Answer:
630.75 j
Explanation:
from the question we have the following
total mass (m) = 54.5 kg
initial speed (Vi) = 1.4 m/s
final speed (Vf) = 6.6 m/s
frictional force (FF) = 41 N
height of slope (h) = 2.1 m
length of slope (d) = 12.4 m
acceleration due to gravity (g) = 9.8 m/s^2
work done (wd) = ?
- we can calculate the work done by the boy in pushing the chair using the law of law of conservation of energy
wd + mgh = (0.5 mVf^2) - (0.5 mVi^2) + (FF x d)
wd = (0.5 mVf^2) - (0.5 mVi^2) + (FF x d) - (mgh)
where wd = work done
m = mass
h = height
g = acceleration due to gravity
FF = frictional force
d = distance
Vf and Vi = final and initial velocity
wd = (0.5 x 54.5 x 6.9^2) - (0.5 x 54.5 x 1.4^2) + (41 x 12.4) - (54.5 X 9.8 X 2.1)
wd = 630.75 j
Answer:
The definition of torque states that one or both of the angular velocity or the moment of inertia of an object are changing.
Velocity and momentum
Explanation:
