Select 3 right answers: A train is braking and continues moving with a
negative acceleration of 2 m/s2. It means that...
Select one or more:
O a. ... the train travels 2 meter less with each
second.
b. ... the train travels 2 meters per second.
C. ... the speed of the train decreases 2 m/s with
each second
d. ... the speed of the train decreases until 2
m/s and remains the same.
e. the acceleration of the train decreases
2m/s2 with each second.
f. ... the speed of the train decreases 2 m/s with
each second.
g. ... the speed of the train decreases uniformly
and is equal to zero after two seconds.

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

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explanation:

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i think the answer would be b