Mechanics | Relativity Answers

An object allowed to fall from height of 70m at the same time a projectile is fired straight up at velocity of 35m/s. When and where will they pass each other?

The trailer is driving 68km/h.The tractor 3 tons is loaded on the trailer. When trailer suddenly stops, how much force apply on the tractor and push forward?

a harmonic oscillator has a mass of 0.20kg and unknown spring constant, if the period is T = 20s, find k

the motion of a particle is describe by x=10sin2t + 8cos2t. determine the period, amplitude and phase angle

boat can safely displace 2.50 m3 of water without sinking, and the boat itself has a mass of 850 kg. What maximum mass of passengers and cargo can the boat carry safely in a fresh-water lake? [6] 2.2 A pipe in the basement of an apartment complex is accidentally punctured, causing a leak through the small hole formed (see Figure 2). An astute physics student estimates that the water is leaking out a speed of 25 m/s. Apply the Bernouli equation to estimate the gauge pressure inside the pipe. [8]

(1) A stone is thrown obliquely upwards with the output speed 25m / s from a point 1.5m above ground level. The throwing height of the bow is 26.0m above the ground. how big is the stone's speed when it passes the highest point? we ignore the air resistance.

Use dimensional analysis to express the wave velocity in terms of the tension in the string and mass per unit length of the string.

Set up the differential equation for transverse waves in a string.

Set up the differential equation of a damped oscillator.

What is a torsional pendulum ? Derive the
expression for the time period of a torsional
pendulum. State one use of such a
pendulum.