An object moves along a straight line and it's velocity (v) in ms¹ at time (t) in seconds, is given by V= 5-4 (2 ≤ t ≤7) Find the change in the displacement of the object from time t=2 to time t-7. Change in displacement = m

A particle is moving along a straight line such that the distance traveled (in feet) after t seconds is given by the function s(t) = 8t2 + 30t. At t = 8 seconds, what is the velocity of the particle? &eints fool LO- at ner second

A person is walking at a rate of 5 ft per hour toward the foot of a flag pole 60 feet high. At what rate is the distance S(x) from the head of the person to the top of the pole changing when 80 ft from the bottom of the flag pole?

A potato is launched vertically upward with an initial velocity of 170 feet per second from a potato gun at the top of an 66-foot-tall building. The distance in feet that the potato travels from the ground after t seconds is given by s(t) 16+2 + 170t + 66. a) Find the velocity of the potato after 2.2 seconds and 7 seconds. At t = 2.2 seconds, v = At t = 7 seconds, v = feet per second. feet per second. b) Find the speed of the potato at 2.2 second and 7 seconds. At t = 2.2 seconds, the speed of the potato is At t = 7 seconds, the speed of the potato is c) Determine when the potato reaches its maximum height. t seconds Determine how long the potato is in the air. seconds. d) Find the acceleration of the potato at 2.2 seconds and 7 seconds. At t = 2.2 seconds, a = At t = 7 seconds, a = feet per second. Determine the velocity of the potato upon hitting the ground. feet per second. feet per second. feet per second per second. feet per second per second.