Question

3. A load of mass 30 kg is lifted up by
70 m. Calculate the work done. (Take
8 = 9.8 ms.)​

Answer 1

Correct Question

A load of mass 30 kg is lifted up by

7 . 0 m. Calculate the work done. (Take

G = 9.8 ms.)

Answer :-

Given :-

Mass = 30 kg

Gravity = 9.8 MS

hight = 7 m

To Find :-

• work done

We know that when object raised above at certain height ,

Potential energy = Work done = M × g × h

Thus,

The work done = 30 × 9.8 × 7

= 2058 J

Answer 2

Step-by-step explanation:

$\huge\underline\mathbb\red{GIVEN}$

$mass \: = 30kg \\ g = \frac{9.8m}{ {s}^{2} } \\ \\ h = 70m$

$\huge\underline\mathbb\blue{TO FIND}$

WORK DONE-:

$as \: we \: know \: that \: \\ \\ work \: done = m \times g \times h \\ \\ = 30 \times 9.8 \times 70 \\ = > 20580 \: joule s$

HOPE IT'S HELP YOU (: