Ask a Doubt
Request a call back

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

CBSE Class 11-science Answered

Hello
question image
Asked by jain.pradeep | 26 May, 2019, 06:40: PM
answered-by-expert Expert Answer
In figure II if we consider the direction in which block is moving as positive
the net force would be
F subscript n e t end subscript equals 200 minus 100 equals 100 100 equals space m a
Here the acceleration comes out positive which means acceleration and velocity both are in the same direction.
 
In figure III
if we consider direction in which the block is moving as positive 
then
F subscript n e t end subscript equals 100 minus 200 equals negative 100 minus 100 equals m a
here the acceleration is negative which shows acceleration and velocity are in opposite direction.
 
For figure I it is given in the question that object is moving in circle with constant speed. If the speed is constant than tangential acceleration i.e a subscript t equals 0 and hence there will be no force in tangential direction. Hence the net force is acting towards the centre which is always perpendicular to the velocity for circular motion.
Answered by Utkarsh Lokhande | 27 May, 2019, 11:55: AM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 11-science - Physics
Respected Ma'am/Sir please clarify my doubt.
question image
Asked by pranavsrinivas82 | 08 Jan, 2024, 11:30: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
A body of mass 50g is moving with a constant velocity of 5m/s on a horizontal smooth surface. The force acting on the body is
Asked by minkukumarprasad94839483 | 30 Jan, 2021, 05:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
A cyclist is riding with a speed of 27km/h. As he approach a circular turn on the road of radius 80m ,he applies break and reduces his speed of the constant rate of 0.5m/s every seconds. What is the magnitude and direction of the net acceleration of the cyclist on the circular turn?
Asked by seema9899442630 | 13 Oct, 2020, 10:10: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
A 0.5 kg mass is rotated in a horizontal circle of radius 20cm . Calculate the centripetal force acting on it , if its angular speed of revolution is 0.8rad/s 
Asked by prakashpote873 | 07 Apr, 2020, 06:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
When a bus suddenly takes a turn the passengers are thrown outwards because of  a. Inertia of motion b. Inertia of direction c. Acceleration of motion d. Speed of motion  Please explain this question and which of the following is the correct with whole explanation? 
Asked by Tanmmygarg6 | 18 Sep, 2019, 02:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Hi
question image
Asked by jain.pradeep | 29 May, 2019, 11:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Hello
question image
Asked by jain.pradeep | 27 May, 2019, 06:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Hello
question image
Asked by jain.pradeep | 26 May, 2019, 06:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
What is banking of roads?
Asked by labheshvaidya | 13 Mar, 2019, 12:52: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Physics
Why is banking of roads necessary?
Asked by pradnya.rath55 | 22 Feb, 2019, 01:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×