Question

How much work is done when:
a) a 6N force moves 3m?
b) a 12m force moves 0.5m?
c) a 10N force moves 10mm?

Answer 1

Answer: A. 18 J

              B. 6J

              C. 0.1J

Explanation: WE KNOW

WORK = FORCE * DISTANCE

Answer 2

Answer:

AS WE KNOW,

Work = Force × displacement

i) force = 6N

disp. = 3m

W= 6N×3m

= 18J (ans.)

ii) force = 12N

disp. = 0.5m

W= 12N × 0.5m

= 12N × 5/10m

= 12N × 1/2m

= 6J (ans. )

iii) force = 10N

disp. = 10mm

(Change mm into m)

= 10mm

= 0.01m

W= 10N × 0.01m

= 0.1J ( ans.)

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