Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

What is centripetal force?
Asked by hifromthefarms | 28 Dec, 2020, 08:53: PM
answered-by-expert Expert Answer
When an object moving with speed v in a circular path of raidus R , this object experiences acceleration that is
directed towards centre of the circular path. The object may be moving with uniform speed in circular path ,
but it is keep on changing its direction . This change of direction gives acceleration  in the direction towards
centre of circular path. This acceleration is called centripetal acceleration.
 
Magnitude of centripetal acceleration is ( v2 / R ) , where v is speed of object in circular path and R is its radius.

According to Newton's second law, the force f providing this acceleration is  f =m ( v2 / R )   ,
where m is the mass of the body. This force directed forwards the centre is called the centripetal force.
 
For a stone rotated in a circle by a string, the centripetal force is provided by the tension in the string.
 
The centripetal force for motion of a planet around the sun is the gravitational force on the planet due to the sun.
 
For a car taking a circular turn on a horizontal road, the centripetal force is the force of friction.
Answered by Thiyagarajan K | 28 Dec, 2020, 10:20: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
CBSE 10 - Physics
An object is kept at a distance of 15 cm from a (a) Convex mirror (b) Plane mirror The focal length of the convex mirror and the concave lens are 10 cm each. Draw the appropriate ray diagrams, showing the formation of image, in each of the three cases.
Asked by susrisangita792 | 02 Jun, 2023, 08:00: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Very Short Answer Type Questions Name two mirrors used in this fair shop. Name the mirror in which the size of image is small.
Asked by susrisangita792 | 01 Jun, 2023, 06:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
can a convex mirror ever form a real image? If yes, under what condition?  
Asked by supriyarakshit.npph | 31 May, 2023, 08:49: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
what is refraction  
Asked by deepbhagat1090 | 13 May, 2023, 09:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
the angle between an incident ray and the reflecting surface is 55°. what will be the total angle between the incident and reflected ray?
Asked by ruchipandey20071978 | 11 May, 2023, 06:53: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
What are the values of the angle of incidence, and the angle of reflection for normal incidence on the plane mirror surface?
Asked by anuskakuhu | 21 Mar, 2023, 11:50: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Please answer ... The hydroelectric capacity of Koyna dam is ______ a) 2400 MW  b) 1960 MW  c) 1900 MW  d) 1961 MW 
Asked by Shiwani.Sawant | 20 Mar, 2023, 02:53: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Write the name of a small satellite made by a group of students from COEP (college of engineering, Pune) sent to space through ISRO in 2016.
Asked by Arun | 18 Mar, 2023, 09:13: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
The power of convex lens of focal length 20 cm is
question image
Asked by varma.renu9481 | 17 Mar, 2023, 06:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
a concave mirror has a radius of curvature of 0.4m. find the position and size of the image of an object placed 0.2m high and is placed 0.8m in front of a concave mirror.
Asked by priyanshdhiman2008 | 17 Mar, 2023, 09:17: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt