Factors of 840 are integers that can be divided evenly into 840. There are overall 32 factors of 840 among which 840 is the biggest factor and its prime factors are 2, 3, 5, 7
The distance travelled by a moving train in the first, second, and third seconds are 20 m, 15 m and 10 m respectively. It means that (A) the train is decelerating (B) the initial velocity of the train is 20 m/s the constant deceleration of the train is 5 m/s² (D) the constant deceleration of the train is 10 m/s²
To derive a relation between electric field and potential, consider two equipotential surfaces separated by a distance dx, let V be the potential on surface 1 and V-dV be the potential on surface 2. Let E be the electric field and the direction of the electric field is perpendicular to the equipotential surfaces.