A wedge with a rough groove in the shape of a quarter of a circle is kept on a smooth table (see figure). A small block is placed in the groove with a small clearance. The wedge is moved with an acceleration sqrt(3)g . If the block is to remain stationary relative to groove in the position shown, the coefficient of friction required can be:
The average speed of a train is 4(1)/(3) times the average speed of a tractor. The tractor covers 270 km in 15 hours. How much distance will the train cover in 12 hours?
Why are grooves provided in the soles of shoes ?
Deltoid groove is present in
$ Dinoflagellates have two grooves in the cell wall. ! There are many flagella in each groove.
Calculate the kinetic energy of a tractor crawler belt of mass m if the tractor moves with a velocity v . There is no slipping. Neglect the size of the wheels.
Following pictograph shows the number of tractors in five villages. Observe the pictograph and answer the following questions. What is the total number of tractors in all the five villages ?
When air is pumped into a cycle tyre, the volume and pressure of the air in the tyre, both are increased. What about Boyle's law in this case?
When air is pumped into a cycle tyre the volume and pressure of the air in the tyre both are increased. What about Bouyle's law in this case?
