A body having a mass of 0.5 kg slips along the wall of a semispherical smooth surface of radius 20 cm shown in figure. What is the velocity of body at the bottom of the surface?

Consider the frequency distribution of the given number

If the mean is known to be ' 3 , then the value of f is

Arithmetic mean of the data
is

Force F on a particle moving in a straight line varies with distance d as shown in the figure. The work done on the particle during its displacement of 12 m

Given below is a graph between a variable force (F) (along y-axis) and the displacement (X) (along axis) of a particle in one axis) of a particle in one dimension. The work done by the force in the displacement interval between 0 m and 30 m is

Velocity time graph of a particle of mass 2 kg moving in a straight line is as shown in figure. Work done by all forces on the particle is

A toy car of mass 4 kg moves up a ramp under the influence of force plotted against displacement x. The maximum height attained is given (Take

If Wa, Wb, and Wc represent the work done in moving a particle from X to Y along three different path a, b, and c respectively (as shown) in the gravitational field of a point mass m, find the correct relation between Wa, Wb and Wc

Let then

Let be A.P and be in H.P If and the

The work done by a force acting on a body is as shown in the graph. what is the total work done in covering an initial distance of 15 m?

A 8 kg mass moves along x - axis. Its accelerations as a function of its position is shown in the figure. What is the total work done on the mass by the force as the mass moves from x=0 to x=6 cm ?

If A and G are A.M and G.M between two positive numbers a and b are connected by the relation A+G=a-b then the numbers are in the ratio

We have to be careful while solving quadratic equation questions as there are chances of mistakes with the signs while finding the roots. Sometimes the students try to use factorisation methods to solve the quadratic equation, but in this type of questions, it is not recommended at all. Always try to use the quadratic formula for solving. You can also remember the statement to be proved, given in the question as a property for two positive numbers.

If where a<1, b<1 then

If l, m, n are the terms of a G.P which are +ve, then

The relationship between force and position is shown in the figure given (in one dimensional case) calculate the work done by the force in displacing a body from x=0 cm to x=5 cm