Work may be defined as
The length of a Second's pendulum, is
A cable loaded with 0.5 tonne per horizontal metre span is stretched between supports in the same horizontal linem apart. If central dip ism, the minimum tension in the cable, will be
The centre of gravity of a triangle is at the point where three
If the gravitational accelerational at any place is doubled, the weight of a body, will
u1 and u2 are the velocities of approach of two moving bodies in the same direction and their corresponding velocities of separation are v1 and v2. As per Newton's law of collision of elastic bodies, the coefficient of restitution (e) is given by
To attain the synchronous orbit, the launch of a satellite, is done from a place
A particle moves along a straight line such that distance x traversed in t seconds is given by x = t2(t + 1), the acceleration of the particle, will be
The forces which meet at one point and have their lines of action in different planes are called
If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by
The Law of Polygon of Forces states that
At a given instant ship A is travelling at 6 km/h due east and ship B is travelling at 8 km/h due north. The velocity of B relative to A is
Parallelogram Law of Forces states, "if two forces acting simultaneously on a particle be represented in magnitude and direction by two adjacent sides of a parallelogram, their resultant may be represented in magnitude and direction by
The equation of motion of a particle starting from rest along a straight line is x = t3 - 3t2 +The ratio of the accelerations after 5 sec and 3 sec will be
Which one of the following statements is true ?
The locus of the instantaneous centre of a moving rigid body, is
Please disable the adBlock and continue. Thank you.