The amount of work done by the student in carrying the backpack is 30.6 J
<h3>Definition of workdone </h3>
Workdone is defined as the product of force and distance moved in the direction of the force.
Work done (Wd) = Force (F) × distance (d)
Wd = Fd
Also,
Force (F) = mass (m) × acceleration (a)
F = ma
Therefore,
Wd = (ma) × d
With the above formula, we can obtain the work done by the student.
<h3>How to determine the Workdone </h3>
From the question given above, the following data were obtained:
- Mass (m) = 12 Kg
- Acceleration (a) = 0.51 m/s²
- Distance (d) = 5 m
- Workdone (Wd) =?
Wd = (ma) × d
Wd = 12 × 0.51 × 5
Wd = 30.6 J
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Answer:
25 m
Explanation:
The relationship between Velocity, distance and time is given as
S = v/t........................... Equation 1
Where S = average velocity of the car, d = distance covered by the car, t = time
Making d the subject of the equation,
d = vt.................... Equation 2
Given: v = 6.25 m/s, t = 4.00 s.
Substitute into equation 2,
d = 6.25(4)
d = 25 m.
Hence, the distance traveled by the car = 25 m
Answer:
Explanation:
Mass of the Jupiter is 319 times more than that of the earth but its acceleration due to gravity is only 2.5 times more than the earth because the radius of the Jupiter is about 11 times greater than the earth.