Determine the velocity at which ball was thrown
A boy throws a ball straight up from the top of a 12m tower. If the ball falls past him 0.75 s later, determine the velocity at which it was thrown, the velocity of the ball when strickes the ground, and the time of flight.
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How much energy (in ft-lbf, Btu, and kJ) is required to accelerate my 3400 pound car from rest to a velocity of 60 mph on a level stretch of road?
What is the amount of shaft work produced by a typical IC engine per gallon? The remainder of the energy released in the combustion is in the form of heat.
Assume an astronaut in training sits in a seat at one end facing the axis of rotation 29.0 ft away. Determine the rotation rate, in revolutions per second, required to give the astronaut a centripetal acceleration of 20.0g.
If the box is a distance 1.81 from the rear of the truck when the truck starts, how much time elapses before the box falls off the truck?
If the ball falls past him 0.75 s later, determine the velocity at which it was thrown, the velocity of the ball when strickes the ground, and the time of flight.
If B maintains its constant speed, while A begins to decelerate at a, determine the distance d between the cars at the instant A stops.
The cannon is not restrained and moves backwards off the tower according to Newton's third law. Calculate the distance the cannon lands from the base of the tower.
Suppose your assignment were to prepare the Glaser type product of a mixed reaction of phenyl acetylene and propyne. How might the procedure in this experiment be modified so that the mixed product can be most efficiently isolated?
A pitcher throws the ball horizontally with velocity 12.5 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 187 ms. What are the magnitude and direction of the force the pitcher exerts on the ball?
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