Answer :
The object travels horizontally before striking the ground is 1 sec.
Calculation:-
Height = 45 m
speed = 50 m/s
S = ut + 1/2at²
45 = 50×t + 1/2 × 9.8 × t²
T = 1 sec
The rate of trade of function of an item in any path. speed is measured as the ratio of distance to the time in which the space is turned covered. the pace is the gap traveled in line with a unit of time. it is how fast an object is transferring. The pace is the scalar amount that is the significance of the rate vector. It would not have a route. higher pace means an item is transferring faster.
Speed is the gap of a shifting object in a given quantity of time. velocity is a degree of the way speedy something is moving. The common velocity of an object in a sure time is the gap the item traveled divided by the point. The average velocity of the answer is described as the average amount of time it takes for a call center to answer a smartphone name from a patron. protected on this metric is the time a caller waits in a queue.
Learn more about speed here:-https://brainly.com/question/13943409
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