Author Question: With no air resistance, a projectile fired at 50 has the same range as if it were fired at A) 40. ... (Read 91 times)

AEWBW · **on:** Jul 29, 2018

With no air resistance, a projectile fired at 50 has the same range as if it were fired at

A) 40.
B) 45.
C) 55.
D) 60.

Question 2

A string is wrapped around a pulley with a radius of 2.0 cm and no appreciable friction in its axle. The pulley is initially not turning.

A constant force of 50 N is applied to the string, which does not slip, causing the pulley to rotate and the string to unwind. If the string unwinds 1.2 m in 4.9 s, what is the moment of inertia of the pulley? A) 0.17 kgm2
B) 17 kgm2
C) 14 kgm2
D) 0.20 kgm2
E) 0.017 kgm2