A student wants to launch a tennis ball horizontally just over a 6.0 m high fence and have it land at approximately 20.0 m beyond the fence. What speed would the tennis ball need to have to land at this approximate distance?

Explanation:

Time taken for vertical displacement will be equal to time taken for horizontal displacement .

Let it be t

for vertical fall , initial velocity u = 0

h = ut + 1/2 gt²

6 = 0 + .5 x 9.8 t²

t = 1.1065 s

horizontal displacement = horizontal velocity x time

20 = horizontal velocity x 1.1065

horizontal velocity = 18 m /s approx.

jupiter

explanation:

it is so massive and has such a strong gravitational pull its likely prevented the formation of a planet between itself and mars in the asteroid belt

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stan bts

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.