Question

A 500-kg meteoroid is traveling through space far from any measurable force of gravity. If it travels at 100 m/s for 1000 years, how much work is done on the meteoroid?

Answer 1

I don't know how to solve this problem..

Answer 2

W=Fd
what is the force acting on the meteoroid ?

Answer 3

there is no force acting on the meteoroid..

Answer 4

ohhhh!!!!

Answer 5

so then Fd=...?

Answer 6

ut it mentions "traveling through space far from any measurable force of gravity."

Answer 7

so I can't find the force = mg

Answer 8

I'm pretty sure that by "far from any measurable force of gravity." they mean to ignore gravity. We couldn't even calculate gravity if we wanted to because no such info is given in the problem.

Answer 9

ohh. so,how do I solve force?

Answer 10

force is zero, so work is zero...

Answer 11

furthermore the object does not accelerate in its direction of motion, so it must have a zero force acting on it at lest in that direction, so Fd is still zero

Answer 12

so everything is zero?

Answer 13

well distance is not zero, mass is not zero, and total force may not be zero (if the force is just making the object turn it does no work)

but since linear acceleration is zero, then the force in the direction of motion is zero, so work is zero

so yeah, at least two things are zero here

Answer 14

velocity is also not zero, but if it does not change there is no linear acceleration

no acceleration means no force (in the direction of motion). no force means no work