i've finished the first part (a)
i can't do b and c
for b i think because it already has reached it's fastest speed it must slow down from then on. what's the best way to word this?
c. for this question i think it's o.5(0.005) x velocity^2 but i don't know how to work out velocity i...
for b i think because it already has reached it's fastest speed it must slow down from then on. what's the best way to word this?
c. for this question i think it's o.5(0.005) x velocity^2 but i don't know how to work out velocity i know it's v=d/t.
when a gun is fired a very large force acts on the bullet for a very short time.
formula that's given: force x time = change in momentum (kg m/s)
an average force of 4000 acts for 0.01 seconds on a bullet of 50g mass.
DONE THIS PART
b. the bullet is fired...
how can it be 3m/s^2 because that ids already given in the question.
i think i remeber my teacher saying that it's: 80 + 35= 115
115 x 3 = 375
375/35 = 1.3...m/s
is that correct?
Mr Green, mass 80 kg, stepped off a boat of mass 35 kg at a speed of 3m/s. how fast did the boat move in the opposite direction?
i have no idea how to work it out?