A student measures the mass of a lead weight. She then applies a force of known magnitude in pushing the weight over a smooth surface. She measures the acceleration of the weight when acted on by the force. Which would be the BEST hypothesis for this investigation?

c) up is the direction the magnetic force is acting on the charge.

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft