Sphere a is attached to the ceiling of an elevator by a string. a second sphere is attached to the first one by a second string. both strings are of negligible mass. here m1 = m2 = m = 3.14 kg.(a) the elevator starts from rest and accelerates downward with a = 1.35 m/s2. what are the tensions in the two strings in newtons? t1 = nt2 =.(b) if the elevator moves upward instead with the same acceleration what will be the tension in the two strings in newtons? t1 = = .(c) the maximum tension the two strings can withstand is 92.6 n. what maximum upward acceleration (in m/s2) can the elevator have without having one of the strings /s2.

Assuming weightless pulleys and 100% efficiency, what is the minimum input force required to lift a 120 n weight using a single fixed pulley?

What is the momentum of a 2 kg object moving at 15 meters per second

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p