Flag General Physics> A constant force of 2.50 N accelerates a ...
question mark

A constant force of 2.50 N accelerates a stationary particle of mass 15 g through a displacement of 2.50 m.Find the work done and the average power delivered?

Jayant Kumar , 11 Years ago
Grade 11
anser 2 Answers
Amitesh Sahu

Last Activity: 7 Years ago

Work=Force×Displacement=2.5×.2.5=625JAlso,Force=Mass×AccelerationOr,2.5=0.015×a ,Or a=500/3Displacement=ut+1/2at2,Or 2.5=1/2×500/3×t2So, t=0.00173Now, Power=Work/TimeOr, P=6.25/0.0173=31.6J

Pratham

Last Activity: 6 Years ago

Work done=force*displacement for straight line motion
Work done=2.5*2.5=6.25 J
acceleration=force÷mass
Acceleration=2.5*1000÷5=500÷3
s=ut+1÷2(at^2)
2.5=0+1÷2(500÷3)t^2
>t=0.173s
 
Power=(work done)÷time=6.25÷0.173=36.1W
 
 

Provide a better Answer & Earn Cool Goodies

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free