a truck of mass 2500 kg moving at 15m/s collides with a car of mass 1000 kg moving at 5 m/s in the opposite . with what velocity would the two move together
Answers
Let mass of the truck be mt and car be mc
Total linear momentum before collision=mtut+mcuc
=2500×15+1000×-5
=37500-5000=32500kgm/s
Total linear momentum after collision=(m1+m2)v
=2500+1000=3500vkgm/s
On applying law of conservation of linear momentum
Total linear momentum before collision=after collision
32500=3500v
V=32500÷3500=9.28m/s(on the direction of the truck is positive)
Answer:
Let mass of the truck be m1 and car be m2
Total linear momentum before collision=m1u1 + m2u2
=2500×15+1000×-5
=37500-5000=32500kgm/s
Total linear momentum after collision=(m1+m2)v
=2500+1000=3500vkgm/s
On applying law of conservation of linear momentum
Total linear momentum before collision=after collision
32500=3500v
V=32500÷3500=9.28m/s(on the direction of the truck is positive)
Explanation: