Question

The mass and speed of four bodies are:
Body. Mass. Speed
A. 1kg. 10m/s
B. 2kg. 9m/s
C. 3kg. 8m/s
D. 4kg. 7m/s
The body with the largest magnitude of momentum is
(a)A. (b) B. (c)C. (d)D

Answer 1

p=mv
a) p = 10 kg-s/m
b) p = 18
c) p = 24
d) p = 27
therefore d option has the greatest answer among the four

Answer 2

Answer:

Concept:
The largest momentum of magnitude is calculated by the formula

                              p = mv

where, p = momentum

            m = mass of the body

             v = velocity of the body

Explanation:

For the given options, by finding momentum

      A.  m = 1kg   v = 10m/s

                     p = 1 × 10

                     p = 10 kg. m/s

      B.  m = 2kg   v = 9m/s

                     p = 2 × 9

                     p = 18 kg. m/s

      C.  m = 3kg   v = 8m/s

                     p = 3 × 8

                     p = 24 kg. m/s

      D.  m = 4kg   v = 7m/s

                     p =  4× 7

                     p = 28 kg. m/s

Hence the highest is 28kg. m/s , that is option (d)

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