An object of mass 12kg is held at a weight of 5m above the ground for 30s. Calculate the workdone during this period.
1 answer:
You might be interested in
Answer:
<h3>The answer is 2800 kg</h3>Explanation:
The mass of the truck can be found by using the formula
f is the force
a is the acceleration
From the question we have
We have the final answer as
<h3>2800 kg</h3>Hope this helps you
Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction on that system. Mathematically can be written as,
Here,
v = speed of the exhaust gases measured relative to the rocket.
= Rate of change of mass with respect to time
Our values are given as,
Replacing we have that