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Grade: 10
        1. A load is to be moved using a wheelbarrow. The total mass of the load and wheelbarrow is 60 kg. 
The magnitude of gravitational acceleration is 10 ms­2
.
What is the work done if the handle is raised by 50 cm?
a) 35.0 J
b) 17.5 J
c) 175 J
d) 350 J
6 years ago

Answers : (4)

Nirmal Singh.
askIITians Faculty
44 Points
							
201-722_download.png

Total load=60kg or 600N

Load arm=70cm=0.70m

Effort arm=70+50=120cm=1.20m

Now,

Load x load arm=Effort x Effort arm

600 x 0.70=E x 1.20

E=350N

Now work done =350 x 0.50=175J


Regards,

Nirmal Singh

Askiitians Faculty

6 years ago
rishav
20 Points
							
17.5J
5 years ago
rishav
20 Points
							
175J
5 years ago
me
11 Points
							
its 175.asdfnhkkkdjkjhszghjzcxnzcxbmdhdshksdZhcb,kjdSkDhbVkjkjbcvbcxkjbzcvkbj,sdfigkSyiefgbfesgdefgbdckbhzxckbgkbhCXkghCghbhxchxczhxhxhxhkjkhsddsmbcghsd
2 years ago
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