16 Answered Questions for the topic Dynamics
should we not consider the force required to cause the static friction for car going on a curve with the help of friction?
in university physics book i found that frictional force(static) was causing an acceleration of magnitude enough to cause it to go in curve path and we took out the max velocity allowed but... more
1-D Kinematics of Particles
Particle 𝐴, which is initially at rest, wants to meet Particle 𝐵, however they are 𝑋𝑌𝑍 ft away from one another. The motion of particle 𝐴 heading toward 𝐵 is defined by the relation: 𝑠 = 1/𝑎2 where... more
Fountain physics problem
Water from a large cylinder is coming to the fountain. The cylinder has a hole of diameter d=2 cm through which the water comes up. The water is coming at a speed of 12 m/s.I need solutions for... more
Cylinder physics problem
A horizontal cylinder with volume V is filled with water and stopped up with a piston. On another end of the cylinder there is a small hole whose cross-section's area s is much smaller than the... more
Physics Energy Question
A 5.0 kg crate is pushed across a horizontal surface by a 60.0 N force directed 32°C below the horizontal. Determine the work done on the crate by this force after the crate moves 8.0 m.
Dynamics Differential Equations
Equation of Motion for a weighted vertical spring
A spring-mass system (below) is initially at rest. If mass m is excitedby a sinusoidal force p(t) = P sin ωt, what is the response x(t), t ≥ 0? Assume that m = 1 kg, k = 100 N/m, P = 5 N, and ω = 2... more
Moment of Inertia
So I have had these questions confusing me for some time and tried googling but came up with long , hard-to-understand equations and notations and articles. So I would be glad if someone could... more
Coefficient of Static Friction Physics Problem
A box that weighs 50 N is pulled by a force of 10 N. The coefficient of static friction between the box and the ground is 0.5. Describe what will happen to the box? Will it start moving? Will it... more
Moving Elevator Physics Problem
An elevator is suspended by a cable and the elevator weighs 5500 N. The elevator moves upward with an acceleration of 4 m/s2. Find the tension in the supporting cable. * Use 10 m/s2 for the... more
Dynamics Mechanical Engineering
If a ball moves along a curved path the path of the radius of curvature of 5m and the mass of the ball is 10 kg.What should be the velocity of the ball if the force along the normal direction is 18 N?
Dynamics. See title above for question. Looking for specific answer and/or method of solving.If a ball moves along a curved path the path of the radius of curvature of 5m and the mass of the ball... more
Are the "polar vortex" and "cut-off lows" over/near the Great Lakes new phenomena?
In recent years, I've heard weather reporters describe "cut-off" low pressure systems which park over Southern Ontario for days at a time. In summer months, they bring us long stretches of cool... more
Polyphony vs Monophony?
I am taking a basic music class as an elective and was given a chart to compare monophony and polyphony. The elements within the chart are: Melody, Accompaniment, Harmony, Rhythm of Words, Dynamics... more
Dynamic markings and relative sound levels of instuments?
In an orchestra, various instruments have different "perceived output volume" capabilities and these change across registers. For example, flutes get louder in their higher register, bassoons are... more
Why does Coriolis determine the rotation direction of a cyclone but not my drain?
It is a common misconception that Coriolis is responsible for the direction the water swirls down a toilet, tub or sink drain. E.g. does a toilet flush the other way in the southern hemisphere? (If... more