Advertisements
Advertisements
प्रश्न
State two effects of a force when applied on a body.
Advertisements
उत्तर १
Two effects of applied force:
- It can change the state of body.
i.e. It can stop a moving object and also a force can move a stationary object. - A force can change the shape (and size) of an object.
उत्तर २
-
Change in Motion:
- A force can make a stationary body move or change the speed and direction of a moving body.
- Example: Pushing a stationary car causes it to start moving.
-
Change in Shape or Size:
- A force can deform an object, altering its shape or size.
- Example: Squeezing a rubber ball changes its shape temporarily.
APPEARS IN
संबंधित प्रश्न
A brass ball is hanging from a stiff cotton thread. Draw a neat labeled diagram showing the forces acting on the brass ball and cotton thread
Define force.
Sleepers are used below the rails.
A tall building has wide foundations.
A wheel of diameter 2 m can be rotated about an axis passing through its center by a moment of force equal to 2.0 Nm. What minimum force must be applied on its rim?
State the relationship between force, mass and acceleration. Draw graphs showing the relationship between Acceleration and mass for a constant force.
Calculate the acceleration produced in a body of mass 50 g when acted upon by a force of 20 N.
The stone of hand flour grinder is provided with a handle near its rim. Give reason.
Fig. shows a uniform meter scale weighing 100 N pivoted at its centre. Two weights of 500 N and 300 N are hung from the ruler as shown in fig.
(i) Calculate total clockwise and anticlockwise moments.
(ii) Calculate difference in clockwise moment and anticlockwise moment.
(iii) Calculate the distance from O where a 100 N weight should be suspended to balance the meter scale.
