Explain how far are the runners from the flagpole

Reference no: EM1367168

Q. Runner A is initially 4 km west of a flagpole and is running with a constant velocity of 6.5 km/h due east. Runner B is firstly 3km east of the flagpole and is running with a constant velocity of 5.5 km/h due west. How far are the runners from the flagpole when their paths cross?

Q. A proton with mass 1.67 times 10^{-27};{rm kg} is propelled at an initial speed of 3.00 times 10^{5};{rm m}/{rm s} directly toward a uranium nucleus 5{rm m} away. The proton is repelled by the uranium nucleus with a force of magnitude F=alpha/x^{2}, where x is the separation between the two objects and alpha =2.12 times 10^{-26};{rm N} cdot {rm m}^{2}. Suppose that the uranium nucleus remains at rest.

Provide your answer in m/s in scientific notation to three significant digits (i.e. 1.15*10^2)

Reference no: EM1367168

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