Mechanics | Relativity Answers

Is the nature of spring force similar to tension offered by a string on a certain mass?

Establish the differential equation for damped harmonic oscillator and obtain its solution.
Show that the damped oscillator will exhibit non-oscillatory behaviour if the damping is
heavy.

a boy standing on the top of a tower of height 54 ft. throws a packet with a speed of 20 ft/s directly aiming towards his friend standing on the ground at a distance of 72 ft from the foot of the tower. the packet falls short of the person on the ground by x*16/3 ft. the value of x is

find the force of gravitation between two objects weighing 450kg and 570kg when they are 0.750 m apart

A stoneis thrown horizontally a velocityof 20.0m/sat a height of 40.0m.find d range and speed when it strikes the ground?

Q.1 A car possesses 20000 of Momentum.what would be the car's new momentum if...
A. it's velocity is doubled
B.it's velocity is tripled
C. it mass were doubled(by adding one or more passenger)
D.Both it's velocity and mass were doubled
E.it's velocity were doubled and mass were halved
Q.2 A brick of mass is 0.8 Kg is accidentally dropped from a high scaffolding.It reaches the ground with a kinetic energy of 240 J. How high is the scaffolding
Q.3 A person drops a stone down a water well and hear a splash 2 s after it leaves his hand.What is the depth of well
Q.4 The average speed of a car is 35 Km/h. how far it can travel in 45 min?
Q.5 The ball is thrown vertically upward at 20 m/s
a)how high it goes?
b)the time taken to reach this height?
c)the time taken to return to its starting point?
Q.6 Supposing you were in a weightless environment,would it require a force to set an object in motion
THANK YOU

1.The velocity of a particle moving on the x -axis is given by v = x^2 + x, where 'x' is in m and 'v' is in m/s
What is the position (in meters) when it's acceleration is 30 m/(s^2)?

2. A boy standing on the top of a tower of height 54 ft. throws a packet with a speed of 20 ft./s directly
aiming for his friend who is standing 72 ft. away from the foot of the tower. The packet falls short of the friend on the ground by X*16/3. The value X is _______ .

​9.​The original Ferris wheel, built by George Ferris for the Columbian Exposition of 1983, was much larger and slower than its modern counterparts: It had a diameter of 250 feet and contained 36 cars, each of which held 40 people; it made one revolution every 10 minutes. Suppose that the Ferris wheel revolves counterclockwise in the plane with its center at the origin. Car in the figure had coordinates at time . Find the rule of a function that gives the coordinate of car at time

Place a 50g load on the hanger and measure the extension. Add 50g load on the hanger in about 5 steps and measure the extension each time. Plot a graph between load and extension . repeat this activity with springs made of iron,copper and brass. Plot load extension graph in each case compare these graphs. Which of the above material obey hooks law?

A object is flying with velocity 10i+12j m/s and wind is blowing along x axis with velocity u.
If the object starts motion from A and after some time reaches point B, find the value of u