Answer in Physics for Ekott jnr #228204
January 24th, 2023
Find the resultant acceleration:
“a=frac{2d}{t^2}.”
Find the net force:
“F=ma=frac{2md}{t^2}.”
Find the average velocity:
“v=frac dt.”
1) The average power is the force times average speed:
“P=frac{2md^2}{t^3}=576text { W}.”
2) Find the final speed at the end of 3rd second:
“v_f=at=frac{2d}{t}.”
The instantaneous power is
“P_i=Fv_f=frac{4md^2}{t^3}=2P=1152text{ W}.”
