How fast would the 180 pound Superman have to fly to have the same momentum as a 1,800 pound truck ?

a)30 mph



b)300 mph



c)3000 mph



d)33 mph How fast would the 180 pound Superman have to fly to have the same momentum as a 1,800 pound truck ?Superman's speed will have to 10 times the speed of the truck, whatever that is.

But the truck will have to be moving.

How fast would the 180 pound Superman have to fly to have the same momentum as a 1,800 pound truck ?
an 1800 pound truck does not have momentum unless it's moving, you forgot to tell us its speed.





but, if you had, here's how you'd solve it.



m(superman)v(superman) = m(truck)v(truck)

180v = 1800v(truck)

v = 1800v(truck) / 180

v = 10* v(truck)



so superman would have to be going 10 times faster than the truck. How fast would the 180 pound Superman have to fly to have the same momentum as a 1,800 pound truck ?once you have the speed of the truck,u, equate 1800 x u to 180 x 1/sqrt([1 - (v/c)^2] x v where 'c' is the speed of light, v is the speed of superman and the sqrt[1 - (v/c)^2] is the lorentz factor to give the increased mass as a result of the increased speed of the mass... How fast would the 180 pound Superman have to fly to have the same momentum as a 1,800 pound truck ?
You haven't provided enough data: where is the speed of the truck? How fast would the 180 pound Superman have to fly to have the same momentum as a 1,800 pound truck ?Yeah, you need to know the velocity of the truck