The slope of the distance-time graph for an object in uniform motion is straight line.
The slope of the distance-time graph for an object in non-uniform motion is not...
If the motion of an object is along a straight line and in the same direction, the magnitude of displacement is equal to the total path length. In that case, the...
(a) v = (v1 + v2)/2.
Explanation:
Let t be the time related to each velocity. Total distance travelled =v1t+v2t. Total time taken=2t. Hence average velocity = v1t+v2t/2t =(v1+v2)/2.
(c) 2/v = 1/v1 + 1/v2.
Explanation:
Time taken during first phase = x/v1 and during second phase = x/v2.
Total distance =2x
Total time taken = (x/v1)+(x/v2) = x(1/v1 +1/v2)
Average velocity =Total distance/Total time taken ...
(a) Average speed of a particle in a given time is never less than the magnitude of the average velocity.
(b) It is possible to have a situation in which |vector dv/dt| ≠ 0 but d/dt|vector v|...
(c) : Magnetic field applied parallel to motion of
electron exerts no force on it as θ = 0 and force = Bevsinθ = zero
Electric field opposes motion of electron which...
