This is a horizontal projectile problem off a building.
Is the speed of an object equal to:
##v=a*t##
or
##v = |v|## (magnitude)
Current problem:
##Velocity = √(v_0^2 + g^2(2h/g)) positive below x axis##
##t = √(2h/g)##
so is the speed suppose to be ##v = g√(2h/g) m/s##
or...
I came across this one problem that asked for speed and velocity and I was wondering what the speed is suppose to be. I read somewhere that its the magnitude to velocity. So I want to see if I am doing this right.
A ball is launched off the top of a building. The initial velocity of the ball...
Homework Statement
A ballistic pendulum is used to measure the speed of a bullet fired from a gun. The pendulum consists of a 20.0g block hanging from a string. A bullet, with mass 0.50gg, imbeds itself in the block causing the block to swing up to a height of 5.00cm. Find the speed of the...
Homework Statement
A mass m = 0.5 kg is dropped from a height of 1.5m above the end of an uncompressed vertical spring with k = 500 N/m. What is the maximum compression of the spring?
Homework Equations
f_sp = -kx
W_sp = 1/2 kx^2
W_nc = ΔK + ΔU
K = 1/2 mv^2
U = mgh
W = Fdcos∅
p =...