that's what i gotchemguy990 said:A ball of unknown mass is thrown straight up.
*maximum height reached in 5.78 seconds
*acceleration due to gravity 9.8 m/s2
Calculate initial velocity in m/s
Would the initial velocity be 9.8 m/s2 x 5.78 s: 56.644 m/s?
Thats all the information given.
no prob :) so that's 3 for 56.644 m/s!Inonin said:Not to be redundant with the other post but i got the same=P
V initial x (Acceleration)(time) = V final
At the highest point, the velocity is 0 so
V initial + (-9.8m/s^2)(5.78s) = 0
V initial = 56.644 m/s
Initial velocity, also known as initial speed, is the velocity of an object at the beginning of a time interval. It is the speed and direction at which the object is moving at the start of its motion.
Initial velocity can be calculated by dividing the change in position (displacement) by the change in time. This is known as the average velocity formula: v = ∆x/∆t. It can also be calculated using the equation v = u + at, where u is the initial velocity, a is the acceleration, and t is the time.
Initial velocity is the velocity at the beginning of a motion, while final velocity is the velocity at the end of a motion. Final velocity takes into account any changes in speed or direction that may have occurred during the motion, while initial velocity only reflects the initial state of the object.
Initial velocity is important in physics because it is used to calculate the motion of an object. By knowing the initial velocity, along with other factors such as acceleration and time, we can determine the final velocity, displacement, and other important aspects of an object's motion.
Initial velocity plays a crucial role in an object's trajectory, or path of motion. The initial velocity, along with other factors such as gravity and air resistance, determines the shape and distance of an object's trajectory. Objects with a higher initial velocity will have a longer and flatter trajectory, while objects with a lower initial velocity will have a shorter and steeper trajectory.