It's possible for a determined group of people to pull an aircraft. drag is negligible at low speeds, and the only force impeding motion is the rolling friction of the rubber tires on the concrete runway. in 2000, a team of 60 british police officers set a world record by pulling a boeing 747, with a mass of 200,000 kg, a distance of 100 m in 53 s. the plane started at rest. suppose that μr=0.02. estimate the force with which each officer pulled on the plane, assuming constant pulling force and constant acceleration.

According to newton's second law, when the same force is applied to two objects of different masses, a the object with greater mass will experience a great acceleration, and the object with less mass will experience an even greater acceleration, b. the object with greater mass will experience a smaller acceleration, and the object with less mass will experience a greater acceleration, c. the object with greater mass will experience a greater acceleration, and the object with less mass will experience a smaller acceleration, d. the object with greater mass will experience a small acceleration, and the object with less mass will experience an even smaller acceleration.

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

Write down two additional questions about earth's magnetic field that will make your presentation more informative.