* Choose the correct
A force of kinetic friction fx = 5 N acts on a block for a distance d = 0A = 7 m. If
at point o, the block has a mechanical energy E. = 50 J, then the mechanical energy
at point A will be equal to:
E = 50)
E,=?

the answer is a 3.8cm

explanation:

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle