No items in cart
There are two kinds of problems in classical mechanics :(a) To find unknown forces acting on a body, given the body’s acceleration. (b) To predict the future motion of a body, given the body’s initial position and vel...
It is given that,Mass of each ball =0.05 kg Initial velocity of each ball = 6 m/sMagnitude of the initial momentum of each ball, pi=0.3kgms^-1After collision, the balls change their directions of motion without changing...
It is known that, Mass of the rocket,m= 20,000 kgInitial acceleration,a=5ms^-2Acceleration due to gravity,g =10ms^-2By using Newton’s second law of motion, The net force (thrust) acting on the rocket can be written as:F-...
The mass of the box = 2.30 kgand the mass of the first gold piece = 20.15 gThe mass of the second gold piece = 20.17 gThe total mass = 2.300 + 0.2015 + 0.2017 = 2.7032 kgSince 1 is the least number of decimal places,...
Arial Magnification = Area of the image/Area of the object= 1.55/1.75 x 104= 8.857x 103Linear Magnification = √Arial magnification= √8.857x 103 = 94. 1
(a) The thread should be wrapped around a pencil a number of times to form a coil having its turns touching each other closely. Measure the length of this coil with a metre scale. If L be the length of the coil and n...
Magnification of the microscope = 100 The average width of the hair in the field of view of the microscope = 3.5 mm Actual thickness of hair =3.5 mm/100 = 0.035 mm
Impulse It is given by the product of force and time. As force is a vector quantity, its product with time gives a vector quantity.
Scalar: Mass, volume, density, angular frequency, number of moles, speed.Vector: Acceleration, angular velocity, velocity, displacement.A scalar quantity is specified by its magnitude. Mass, volume, density, angular fre...
We know that instantaneous velocity is the first derivative of distance with respect to time.Here, the time interval is so small that it is assumed that the particle does not change its direction of motion. Therefore,...
Hi 👋
How can we help you?