A proton in a uniform electric field moves along a straight line with constant acceleration starting from rest. If it attains a velocity 4×103km/s at a distance of 2cm, the time required to reach the given velocity is :
How much time will it take for a body with acceleration 2 m/s2 , to attain a velocity of 10 m/s? (Starting from rest)
Two particles one with a constant velocity 50 m/s and another starts from rest with uniform acceleration 10m/s2 starts moving simultaneously from the same point and in the same direction at a distance 125 m. Calculate time.
A car starts from rest and accelerates uniformly to attain a velocity 20 m/s after 5s. The average velocity of the car is 10 m/s.
An electron moving with a velocity of 5×104ms−1 enters into a uniform electric field and acquires a uniform acceleration of 104ms−2 in the direction of its initial motion. How much distance the electron would cover in 5s?
A proton is moving with a uniform velocity of 106ms−1 along the Y-axis, under the joint action of a magnetic field along Z-axis and an electric field of magnitude 2×104Vm−1 along the negative X-axis. If the electric field is switched off, the proton starts moving in a circle. The radius of the circle is nearly (given: em ratio for proton =108Ckg−1