Answer:
power =( 890 N x 12 m ) / 22 s=
= 485 Watts
Explanation:
a=m/f is not an equation under newton's second law
newton's second law of motion is represented using: f=ma
where a=v-u/t
therefore it becomes,f=m(v-u)/t
from f=ma,
a will become f/m,
m will become f/a
A
100s:160 paces
50s: 80 paces
80*0.80= 64
Solve for mass:
m= 2k/v(squared)
m=2000(2)/9(squared))
m=49.383 kilograms
