Question Answers

In Fig. A.46, find the horizontal velocity u ( in m/s) of a projectile so that it hits the inclined plane perpendicularly . Given H = 6.25 m. find the horizontal velocity u ( in m/s) of a projectile so that it hits the inclined plane perpendicularly . Given H = 6.25 m. In Fig. [...]

A particle is moving in a circular path of radius 1 m. Under the action of a centripetal force, the speed root 2 pie m/s of the particle is constant. Find the average velocity between A and B A particle is moving in a circular path of radius 1 m. Under the action of a [...]

A grasshopper can jump maximum distance 0.8 m, while spending negligible time on the ground. How far can it go in 3 s (in m ) A grasshopper can jump maximum distance 0.8 m while spending negligible time on the ground. How far can it go in 3 s (in m ) September 25, 2020 [...]

A ball is projected from the origin. The x and y coordinates of its displacement are given by x = 3t and y = 4t – 5t^2. Find the velocity of projection A ball is projected from the origin. The x and y coordinates of its displacement are given by x = 3t and y [...]

A particle moves rectilinearly possessing a parabolic s-t graph. Find the average velocity of the particle over a time interval from t = 1/2 s to t = 1.5 s. A particle moves rectilinearly possessing a parabolic s-t graph. Find the average velocity of the particle over a time interval from t = 1/2 s [...]

Two bodies 1 and 2 are projected simultaneously with velocities v1 = 2 m/s and v2 = 4 m/s respectively. The body 1 is projected vertically up from the top of a cliff of height h = 10 m Two bodies 1 and 2 are projected simultaneously with velocities v1 = 2 m/s and v2 [...]

A particle moves vertically with an upward initial speed v0 = 10.5 m/s. If its acceleration varies with time as shown in a-t graph in Fig.A.42, find the velocity of the particle at t= 4 s. A particle moves vertically with an upward initial speed v0 = 10.5 m/s. If its acceleration varies with time [...]

In a square cut, the speed of the cricket ball changes from 30 m/s to 40 m/s during the time of its contact delta t = 0.01 s with the bat. If the ball is deflected by the bat through an angle of In a square cut the speed of the cricket ball changes from [...]

A small ball is projected along the surface of a smooth inclined plane with speed 10 m/s along the direction shown at t = 0. The point of projection is origin, z-axis is along vertical. The acceleration due A small ball is projected along the surface of a smooth inclined plane with speed 10 m/s [...]

Study the following v-t graphs in column 1 carefully and match appropriately with the statements given in Column 2. Assume that motion takes place from time 0 to 1. Study the following v-t graphs in column 1 carefully and match appropriately with the statements given in Column 2. Assume that motion takes place from time [...]