<em><u>2</u></em><em><u>0</u></em><em><u>.</u></em><em><u>0</u></em><em><u>M</u></em><em><u>/</u></em><em><u>S</u></em><em><u>. </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u>IS</u></em><em><u> </u></em><em><u>THE</u></em><em><u> </u></em><em><u>HORIZONTAL</u></em><em><u> </u></em><em><u>VELOCITY</u></em><em><u> </u></em><em><u>OF</u></em><em><u> </u></em><em><u>THE</u></em><em><u> </u></em><em><u>BALL</u></em><em><u> </u></em><em><u>JUST</u></em><em><u> </u></em><em><u>BEFORE</u></em><em><u> </u></em><em><u>IT</u></em><em><u> </u></em><em><u>REA</u></em><em><u>CHES</u></em><em><u> </u></em><em><u>THE</u></em><em><u> </u></em><em><u>GROUND</u></em>
<em><u>1</u></em><em><u>2</u></em><em><u>.</u></em><em><u>2</u></em><em><u> </u></em><em><u>SECONDS</u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u>IS</u></em><em><u> </u></em><em><u>THE</u></em><em><u> </u></em><em><u>APPROXIMATE</u></em><em><u> </u></em><em><u>TOTAL</u></em><em><u> </u></em><em><u>TIME</u></em><em><u> </u></em><em><u>REQUIRED</u></em><em><u> </u></em><em><u>FOR</u></em><em><u> </u></em><em><u>THE</u></em><em><u> </u></em><em><u>BALL</u></em>
Answer:
2.5 x 10⁷ J
Explanation:
F = thrust of the engine = 2.3 x 10⁵ N
d = distance traveled = 87 m
Work done by the engine is given as
W = F d = (2.3 x 10⁵) (87) = 200.1 x 10⁵ J
W' = Net work done
W'' = work done by catapult
KE₀ = initial kinetic energy = 0 J
KE = final kinetic energy = 4.5 x 10⁷ J
Net work done is given as
W' = KE - KE₀
W' = 4.5 x 10⁷ J
We know that
W' = W + W''
4.5 x 10⁷ = 2.001 x 10⁷ + W''
W'' = 2.5 x 10⁷ J
Explanation:
Acceleration and the other term are the same physical phenomenon - just with opposite affects. Acceleration increases velocity, while the other term that begins with the letter "R" reduces.
***(Brainly's language filter is blocking the use of the second term in my answer.)***
Acceleration is defined as the rate of change of the velocity of an object per unit of time...

Acceleration would be a POSITIVE (+) quantity, while the r-word would be negative (-).
Answer:
last one which is; All the above.