the formula s(t) = −16t2 + v0t. (a) If the object hits the ground after 12 seconds, find its initial velocity v0. v0 = ft/sec (b) Find...
the formula s(t) = −16t2 + v0t. (a) If the object hits the ground after 12 seconds, find its initial velocity v0. v0 = ft/sec (b) Find...
I was given this formula: s=-16t2+v0t+S0 A rubber duckie is thrown into the air from the ground with an initial velocity of 100ft/s. Neglecting air resistaqnce, what is...
A car drives down a road in such a way that its velocity (in m/s) at time t (seconds) is v(t)=2t1/2+5 Find the car's average velocity (in m/s) between t = 2 and t = 6.
If Justin races his Checy S-10 down Highway 4 for 2,560 meters in 60 seconds, what is his average speed(velocity)?
An airplane flies eastward and always accelerates at a constant rate. At one position along its path it has a velocity of 33.5 m/s, it then flies a further distance of 43300 m and afterwards its velocity...
A plane can fly 365 mph in still air. If it can fly 210 miles downwind in the same amount of time it can fly 155 miles upwind, find the velocity of the wind.
The displacement of a particle in centimetres is given by y=8 sin (2πft). If f=20 Hz, find the displacement and the velocity of the particle at a time t=0.01 s and 0.07 s.
A boat of mass 300 kg was being drifted by the current of the river i.e. the boat was moving at the same speed as the current. A boy with mass of 24 kg was standing still on the boat. Suddenly that...
Two closed organ pipes of length 0.5 m and 0.525 m are sounded together and produce 6 beats per second. What is the velocity of sound in the medium with which the organ pipes are filled?
A certain string has a linear mass density of 0.25 kg/m and is stretched with a tension of 25 N. One end is given a sinusoidal motion with frequency 5 Hz and amplitude 0.01m. At time t=0, the end...
The displacement of a particle in centimetres is given by y=8 sin (2πft). If f=20 Hz, find the displacement and the velocity of the particle at a time t=0.01 s and 0.07 s.
The displacement of a particle in centimetres is given by y=8 sin (2πft). If f=20 Hz, find the displacement and the velocity of the particle at a time t=0.01 s and 0.07 s.
The ball was released 6 feet above the ground. The height of the ball at a time t, is modeled by the equation h(t) = -16t2 + 112t + 6 A) What is the maximum height of the ball? B)...
A rock is dropped from a height of 256 ft and falls toward the earth in a straight line. In t seconds, the rock drops a distance of s = 16t^2 ft. Answer the following showing all work. a...
an object is fired vertically upward with an initial velocity v(0) = v0 from an initial position s(0)=s0. Answer part A and B below. A. For v0=39.2m/s and s0=27m find the position...
A rock is dropped. Find its average velocity from t = 3 seconds to t = 5 seconds. (Enter feet/sec)
The missionary pilot flew his plane at the average spwe'd of 187 miles per hour for 11 hours. How far did he travel in that time period?
A boat travels for three hours with a current of 3 mph and then returns the same distance against the current in four hours. What is the boat's speed in four hours? How fast did the boat travel one...
if a crow flies into a headwind of 10m/s and the crow still achieves a relative velocity of 6m/s compared to the ground then what would his relative velocity be if that same wind where a tailwind...
If the current carried by a conductor is doubled what happens to a)the charge carrier density b)the current density c)the electron drift velocity d)the average...