"একটি রম্বস শীট, যার পরিধি হল `32 m` এবং যার একটি তির্যক `10 m`

At what angle should a body be projected with a velocity 24 ms^(-1) . Just to pass over the obstacle 16 m high at a horizontal distance of 32 m ? Take g = 10 ms^(-2) .

A ladder 20 m long s leaning against a vertical wall. It makes an angle of 30^(@) with the ground. How high on the wall doe the ladder reach ? A. 10 m B. 17.32 m C. 34.64 m D. 30 m

The diameters of the ends of a frustum of a cone are 32 cm and 20 cm. If its slant height is 10 cm, then its lateral surface area is 321pic m^2 (b) 300pic m^2 (c) 260pic m^2 (d) 250pic m^2

A path of uniform width runs round the inside of a rectangular field 38 m long and 32 m wide. If the path occupies 600 m2, then the width of the path is (a) 5 m (b) 10 m (c) 18.75 m (d) 30 m

The following data was obtained for a body of mass 1 kg dropped from a height of 5 metres : {:("Distance above ground", "Velocity"),(5 m, 0 m//s),(3.2 m, 6 m//s),(0 m, 10 m//s):} Show by calculation that the above data verifies the law of conservation of energy (Neglect air resistance). ( g = 10 m//s^(2) ).

Two streams merge to form a river. One stream has a width of 8.2 m, depth of 3.4 m, and current speed of 2.3 m/s. The other stream is 6.8 m wide and 3.2 m deep, and flows at 2.6 m/s. If the river has width 10.5 m and depth 4.5 m, what is its speed?

A particle moving with uniform acceleration passes the point x=2m with velocity 20 m//s at the instant t=0 . Some time later it is observed at the point x=32 m moving with velocity 10 m//s . (a) What is its acceleration? (b) Find its position nd velocity at the instant t=8 s . (c) What is the distance traveled during the interval t=0 to 8s ?

Find the work done in lifting a body of mass 20 kg and specific gravity 3.2 to a height of 8 m in water ? (g = 10 m//s^(2)) .

A man performs 2/15 of the total journey by rail, 9/20 by bus and the remaining 10 km, on the cycle. His total journey is 31. 2 k m b. 38. 4 k m c. 32. 8 k m d. 24 k m