Falling Behind in Studies? Join Our Performance Improvement Batch. Enroll For Free
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
A railroad car is moving along a straight frictionless track. In each of the following cases, the car initally has a total mass (car and contents) of 200kg and is travelling with a velocity 4m/s. Find the final velocity of the car in each of the 2 cases: (a) A 20Kg mass is thrown sideways out of the car with a velocity of 2m/s relative to the car? (b) A 20kg mass is thrown into the car with a velocity of 6m/s relative to the ground and opposite in direction to the velocity of the car ?
(a)800=200v1v1=800/200=4m/s(b) P=mv =200*4=800P(final)=m1v1+m2v2800=200v1+20*(-4)v1=880/200v1=4.4m/s
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -