Answer:
The comparison of unknown quantity with known quantity is called measurement.
In calculus, neglecting air resistance, the formula for range is R = v(0)^2 sin 2A/g, where v(0) is the initial speed, A is the angle, and g is the acceleration of gravity. Here v(0) = 20 m/s, and g is a constant.
<span>R = 400 sin 2A </span>
<span>For maximum range, sin 2A = 1, so 2A= 90°, and A= 45
</span><span>
45 degrees is my answer.</span>
Work = (force) x (distance)
Work = (22 N) x (16 m)
<em>Work = 352 Joules</em>
Answer:
a).
Wmin= 2471.03 J
W=1603.01 J
Explanation:
Weight, w= 2267 N
Minimum work 'h' is the distance the refrigerator is raised h=1.09m
The motion is no frictional force so, the magnitude of the force with a angle of 45.0° is find using:
