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Grade: 11
        
A particle is acted upon by a constant force always normal to the direction of the motion of the particle. It is therefore inferred that :
1 ) Its velocity is constant.
2 ) It moves in a straight line.
3 ) Its speed is constant.
4 ) It moves in circular path.
2 years ago

Answers : (1)

Arun
24739 Points
							
 
F=mrw^2
F=mv^2/r
Now F IS CONSTANT
Thus,mv^2/r is constant
Now r will be constant
 Thus mv^2 is constant
This implies Kinetic energy I.e. mv^2/2 is also constant
Here velocity and acceleration will not be constant since velocity is a vector quantity and in a circular motion velocity will keep changing
2 years ago
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