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Let r be the distance of a particle from a fixed point to which it is attracted by an inverse squate law force given by F = k/r^2 (k = constant). Let m be the mass of the particle and L be its angular Let r be the distance of a particle from a fixed [...]

In the figure shown, a spring of spring constant k is fixed at one end and the other end is attached to the mass m . The coefficient of friction between block and the inclined plane is mu. a spring of spring constant k is fixed at one end and the other end is attached [...]

In the position shown in Fig. 8.251, the spring is at its natural length. The block of mass m is given a velocity v0 towards the vertical support at t = 0. The coefficient of friction between the block In the position shown in Fig. 8.251 the spring is at its natural length. The block [...]

The potential energy of a particle is determined by the expression U = alpha (x^2 + y^2), where alpha is a positive constant. The particle begins to move from a point with coordinates (3, 3), 3% The potential energy of a particle is determined by the expression U = alpha (x^2 + y^2) where alpha [...]

A force F = ( 3xy – 5z) j + 4 zk is applied on a particle. The work done by the force when the particle moves from point (0, 0, 0) to point (2, 4, 0) as shown in Fig. 8.250 is 0) as shown in Fig. 8.250 is 0) to point (2 4 [...]

Given F = (xy^2)i + (x^2y)j N. The work done by F when a particle is taken along the semicircular path OAB where the coordinates of B are (4,0) is 0) is Given F = (xy^2)i + (x^2y)j N. The work done by F when a particle is taken along the semicircular path OAB where [...]

Two constant forces F1 and F2 act on a body of mass 8 kg. These forces displace the body from point P (1, -2, 3) to Q (2, 3, 7) in 2 s starting from rest. Force F1 is of magnitude 9 N and 2 3) to Q (2 3% 7) in 2 s starting [...]

A projectile is fired with some velocity making certain angle with the horizontal. Which of the following graphs is the best representation for the kinetic energy of a projectile (KE) versus its A projectile is fired with some velocity making certain angle with the horizontal. Which of the following graphs is the best representation for [...]

A particle of mass m slides on a frictionless surface ABCD, starting from rest as shown in Fig. 8.248. The part BCD is a circular arc. If it looses contact at point P, the maximum height attained A particle of mass m slides on a frictionless surface ABCD starting from rest as shown in Fig. [...]

In an AP, an = 4, d = 2, Sn = -14 find n and a. an = 4 d = 2 In an AP Sn = -14 find n and a. October 4, 2020 Category: Chapter 5 - Arithmetic Progressions , Maths , NCERT Class 10 ,