A body of mass `m = 3.513 kg` is moving along the x-axis with a speed of `5.00ms^(-1)`. The magnetude of its momentum is recorded as

Options

A. 17.6 kg m/s
B. 17. 565 kg - m//s
C. 17.56 kg - m/s
D. 17.57 kg - m/s

Answer

A

Explanation

Momentum is mv.
m = 3.513 kg, v = 5.00 m//s `:. Mv = 17.57 ms^(-1)`
Because the values will be accurate up to 3 significant figures only, 17.566 = 17.6 .