Answer:
The work done is 360 J.
Explanation:
Given that,
Mass = 50 kg
Distance =3 m
We need to calculate the work done
The work done is equal to the product of force and displacement.
Using formula of work done


Where, F = force
D = distance
θ = Angle between force and displacement
Put the value into the formula


Hence, The work done is 360 J.
The work done to push the box is equal to the product between the force and the distance through which the force is applied:

In our problem, the force is F=1.4 N and the distance covered is d=150 m, so the work done by pushing the box is
It is b i had that qustion
Answer:

Explanation:
From the question, acceleration from
in 10 seconds.
Acceleration function can be written as:-

From the acceleration equation, we can obtain the velocity equation:

We calculate velocity after 10sec from the above v(t) as
.
To obtain distance travelled after 10 seconds:-

Therefore 200m is for 10seconds, and next 200m at 30m/s
Total time=