A 1 ton car is going 50km/hr in the OPPOSITE direction from a 2 ton truck moving at 25km/hr, what vehicle has the greater momentum and why?
2007-08-06 10:51:31 · 5 answers · asked by Camilla 2 in Science & Mathematics ➔ Physics
momentum = mass * velocity
The rest is simple number-crunching.
2007-08-06 10:57:10 · answer #1 · answered by Mathsorcerer 7 · 0⤊ 0⤋
without worrying about vectors and direction which is important, the car and the truck have the same momentum as Momentum=mass.velocity, consider a bullet and the truck, the bullet maybe tiny in comparison with the truck but the velocity of the bullet is tremendous and would probably leave you just as dead lol
2007-08-06 15:51:29 · answer #2 · answered by Jago 2 · 0⤊ 0⤋
at first u should choose ur basic direction then u can compare them
as an example the truck direction is (+x) and the car direction is (-x),therefore the vector of truck's momentum is greater than the car because the truck one is posetive but the car one is negative.but both values are the same :
ImomentumI=mass*IvilocityI IpI=mIvI
2007-08-06 12:00:38 · answer #3 · answered by mahdi 1 · 0⤊ 0⤋
Momentum is equal to mass times velocity.
If you have halt the mass,you can make up for it with twice the velocity. The momentum of both vehicles is equal.
If you had asked about kinetic energy, the car has more.
2007-08-06 10:59:32 · answer #4 · answered by John T 6 · 0⤊ 1⤋
Momentums are vectors, they cannot be compared.
Their absolute values are useless, because they are not co-variant.
Taking your question literally, absolute values of both the car and the truck are the same |p1|=|p2|= 50 tonnes x km / h.
2007-08-06 11:00:43 · answer #5 · answered by Alexander 6 · 1⤊ 0⤋