As shown in figure a dust particle with mass m = 5.0 × 10–9 kg and charge q0 = 2.0 nC starts from rest at point a and moves in a straight line to point b . What is its speed v at point b?

Two point charges q_1, q_2=2muC are fixed at x^=+3m and x_2=-3m as shown in figure. A third particle of mass 1 gm and charge q_3=-4muC are released from rest at = 4.0 m. Find the speed of the particle as it reaches the origin.

As shown in the figure, a particle of mass 10 kg is placed at a point A. When the particle is slightly displaced to its right, it starts moving and reaches the point B. The speed of the particle at B is x m/s. (Take g=10 m//s^2 ) The value of 'x to the nearest integer is

A particle of mass m carrying charge q is projected with velocity v from point P toward aninfinite line of charge from a distance a . Its speed reduces to zero momentarily at point Q , which is at a distance a//2 from the line of charge. If another particle with mass m and charge -q is projected with the same velosity v from P toward the line of charge, what will be its speed at Q ?

A particle of mass m carrying charge q is projected with velocity v from point P toward aninfinite line of charge from a distance a . Its speed reduces to zero momentarily at point Q , which is at a distance a//2 from the line of charge. If another particle with mass m and charge -q is projected with the same velosity v from P toward the line of charge, what will be its speed at Q ?

Three point particles of masses 1.0 kg, 1.5 kg and 2.5 kg are placed at three corners of a right angle triangle as shown in figure. The centre of mass of the system is at a point :

Three point particles of masses 1.0 kg, 1.5 kg and 2.5 kg are placed at three corners of a right angle triangle as shown in figure. The centre of mass of the system is at a point :

Three point particles of masses 1.0 kg, 1.5 kg and 2.5 kg are placed at three corners of a right angle triangle as shown in figure. The centre of mass of the system is at a point :

A particle is given velocity v_0 at point A as shown in the figure. Find the speed of particle at point B,C and D

A small particle has charge -5.00muC and mass 2.00 xx 10-4 kg. It moves from point A where the electric potential is V_A = +200 V . to point B, where the electric potential is V_B=+ 800 V . The electric force is the only force acting on the particle. The particle has speed 5.00 m/s at point A. What is its speed at point B? is it moving faster or slower at B than at A. Explain,