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a particle is projected with a speed of 10root 2 m/s and at an angle of 4 degrees with the horizontal. the rate of change of peed wrt to time at t=1sec is ?
The ques. Is asking about the speed and speed is not a vector quantity. So it will not depend on the angle of projection as given in ques 4degree. So the speed wrt time at 1 sec will be equal to 10root2 /1= 10root2.
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