A particle having simultaneous velocities 3 m/s, 5 m/s and 7 m/s is at rest. The angle between the first two velocities is
5 students of a class have an average height 150 cm and variance 18 cm^2. A new student, whose height is 156 cm. joined them.
The acceleration of a particle starting from rest moving in a straight line with uniform acceleration is 8 m/s^2. The time taken b..
the outcome of each of 30 items was observed; 10 items
if mean and standard deviations of 5 observations
A particle is dropped from a height 12 g m and 4 s after another particle is projected from the ground towards it with a velocity ..
the mean and median of the following ten number in increasing order
The mean and variance of seven observations are 8 and 16,
if both the mean and the statement deviations of 50 observations
if the standard deviations of the numbers
If 3P and 4P are resultant of a force 5P, then angle between 3P and 5P is
If the displacement, velocity and acceleration of a particle at time t is x, v and f respectively, then which one is correct?
If in a projectile motion range R is maximum, then relation between H and R is
If two equal components (P) of a force (F) are acting at an angle 120 degree , then F is equal to
The displacement x of a particle at time t is given by x = At^ 2 + Bt + C, where A, B and C are constants and v is velocity of a p..
The displacement of a particle at time t is x , where x = t 4 - kt 3 . If the velocity of the particle at time t = 2 is minimum , ..
The velocity of a particle at time t is given by the relation v = 6t - t^ 2 / 6. The distance travelled in 3 s is, if s = 0 at t =..
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