Question

Case Study
Read the paragraph carefully and choose the correct option in question no.31,32,33 and 34. The product of mass and velocity of a body is termed as linear momentum of the body. According to the law of conservation of linear momentum the total momentum of a system or an object remains constant if no net external force acts on the system or an object. An object of mass 1.5 kg travelling in a straight line with a velocity of 5 m/s collides with a wooden block of mass 5 kg resting on the floor. Both the objects and the wooden block move together with a velocity “v” after collision along a straight line
Q. The momentum of the object before collision is *

(a) 7.5kgm/s
(b) 32.5kgm/s
(c) 5kgm/s
(d) 1.5kgm/s
Q.Total momentum of the system (object + wooden) block before collision is *

(a) 1.15kgm/s
(b) 2.5kgm/s
(c) 7.5kgm/s
(d) 5kgm/s
Q.Total momentum of the system (object + wooden) block is *

(a) 1.5v
(b) 5v
(c) 6.5v
(d) 4.5v
Q.The velocity of combination of the object and wooden block is *

(a) 1.13m/s
(b) 1.1m/s
(c) 1.15m/s
(d) 5m/s

Answer 1

Answer:

answer is 987

Explanation:

789+426621

Answer 2

oh I have understand