Question

If all masses in the figure have a mass of 2 kg and m2 has speed 2 m/s and m3 has speed of 4 m/s, what is the x and y component of the momentum of the center of mass.

Answer 1

Explanation:

Answer

Correct option is

B

4 kg m/s

V

com

inx−direction =

m

1

+m

2

+m

3

m

1

Vx

1

+m

2

Vx

2

+m

3

Vx

3

=

6

2×(0)+2(2)+2(0)

=

6

4

m/s.

∴momentuminx−direction =MT

V

com

x

6×

6

4

=4kgm/s.

Hence,

option (B) is correct answer.