A body of mass 15kg is placed on a smooth plane which is inclined at 60° to the horizontal. If the box is at rest,

calculate the normal reaction to the plane. [ Take g = 10m/s\(^2\) ]

Similar Questions

If \(x^{2} - kx + 9 = 0\) has equal roots, find the values of k....

The sales of five salesgirls on a certain day are as follows; GH¢ 26.00, GH¢ 39....

If 2y\(^2\) + 7 = 3y - xy, find \(\frac{dy}{dx}\)...

A box contains 4 red and 3 blue identical balls. If two are picked at random, one after the other wi...

The velocity, V, of a particle after t seconds, is \(V = 3t^{2} + 2t - 1\). Find the acceleration of...

P, Q, R, S are points in a plane such that PQ = 8i - 5j, QR = 5i + 7j, RS = 7i + 3j  and PS = x...

Find the value of the derivative of y = 3x\(^2\) (2x +1) with respect to x at the point x = 2. ...

Given that \(\frac{1}{x^2 - 4} = \frac{p}{(x + 2)} + \frac{Q}{(x - 2})\) x \(\neq \pm 2\) Find the...

The equation of a circle is \(x^{2} + y^{2} - 8x + 9y + 15 = 0\). Find its radius....

Yomi was asked to label four seats S, R, P, Q. What is the probability he labelled them in alphabeti...