Advertisements
Advertisements
प्रश्न
A vehicle is moving along the positive x-direction, if a sudden brake is applied, then ______
पर्याय
the frictional force acting on the vehicle is along negative x-direction
the frictional force acting on the vehicle is along the positive x-direction
no frictional force acts on the vehicle
the frictional force acts in a downward direction
उत्तर
A vehicle is moving along the positive x-direction, if a sudden brake is applied, then the frictional force acting on the vehicle is along the negative x-direction.
APPEARS IN
संबंधित प्रश्न
Two masses m1 and m2 are experiencing the same force where m1 < m2. The ratio of their acceleration `a_1/a_2` is ______
A particle of mass m sliding on the smooth double inclined plane (shown in the figure) will experience ______
When the object is moving at a constant velocity on the rough surface, ______
Calculate the acceleration of the bicycle of mass 25 kg as shown in Figures 1 and 2.
A spider of mass 50 g is hanging on a string of a cobweb as shown in the figure. What is the tension in the string?
A bomb at rest explodes into 3 parts of the same mass. The momentum of the two parts is `-2"P"hat"i"` and `4"P"hat"J"` respectively. The magnitude of the momentum of the third part is ______
A block of mass Mis pulled along a smooth horizontal surface with a rope of mass m by force F. The acceleration of the block will be ______.
A body of mass M at rest explodes into three pieces, in the ratio of masses 1:1:2. Two smaller pieces fly off perpendicular to each other with velocities of 30 ms-1 and 40 ms-1 respectively. The velocity of the third piece will be:
A block of mass 40 kg slides over a surface when a mass of 4 kg is suspended through an inextensible massless string passing over a frictionless pulley as shown below. The coefficient of kinetic friction between the surface and block is 0.02. The acceleration of the block is ______.
(Given g = 10 ms-2.)
A steel block of 10 kg rests on a horizontal floor as shown. When three iron cylinders are placed on it as shown, the block and cylinders go down with an acceleration of 0.2 m/s2. The normal reaction R' by the floor if the mass of the iron cylinders is equal and of 20 kg each, is ______.
[take g = 10 m/s2 and µs = 0.2]