A conducting bar rests to complete a circuit and immersed on a uniform magnetic field of B = 0.43 T. It is made of silver, has a length of 0.35 m, and diameter of 9 mm. The resistor on the circuit has 28 ohms resistance. Calculate the initial acceleration of the bar, when the resistor's resistance is decreased instantaneously to 4 ohms (due to short circuit). (Hint: you may need to calculate the maximum voltage first where the bar is in the state of equilibrium). R +1 B XXXXX XXX Note: Final answer in ZERO decimal place. Use conventional current. Use pi = 3.14. Include the SI unit (s should be written s^2). Use the following: resistivity of silver = 1.47x10-8 0m density of silver = 10500 kg/m3