Homework Statement
(a) The total load applied to the beam and its direction (in kN)
(b) The stress (σ) in each column given that Their cross-sections are solid square sections 10 x 10 mm
(in MPa)
(c) The strain in each column if the Young’s Modulus (E) of the steel is 207 GPa.
(d) The...
Homework Statement
A ball is launched at a speed of 10ms-1. It lands 5m away. Find the two possible values of the angle, θ, which the initial trajectory makes with the horizontal.
Homework Equations
The equations of motion.
The Attempt at a Solution
I realize that I need to find...
I have realized that I now have a triangle where the x component is u, y component is 19.8 and the hypotenuse is 3u. So I could easily work out u and then the angle by using simple trig.
Is this correct?
Homework Statement
A ball is thrown horizontally with speed u from a height of 20m. It hits the ground with a speed 3u. Find the value of u, and the angle at which the ball strikes the ground.
Homework Equations
The equations of motion.
The Attempt at a Solution
I know that I must...