rational number is greater question is 12/5 or -1
Answers
GIVEN :
Initial velocity, u = 0 m/s.
Acceleration, a = 2 m/s².
Time, t = 4 min.
TO FIND :
Speed, v = ?
Distance travelled, d = ?
CONCEPTS USED :
Newton's first law of motion.
Newton's third law of motion.
SOLUTION :
To find the speed, v = ?
Using the Newton's first equation of motion,
V = u + at.
Substitute the given values in the above equation.
\implies⟹ V = 0 + 2 × 240
\implies⟹ V = 0 + 480
\large \fbox \red {\sf Speed \ = \ 480 \ m/s}
Speed = 480 m/s
•°• Therefore, the speed acquired is 480 m/s.
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Now,
To find the distance travelled = ?
Using the third equation of motion,
S = ut + 1/2 at²
Substitute the given values in the above equation.
\implies⟹ S = 0 × 240 + 1/2 × 2 × 240 × 240.
\implies⟹ S = 0 + 57600
\large \fbox \red {\sf Distance \ = \ 57600 \ m}
Distance = 57600 m
•°• Therefore, the distance travelled is 57600 meters.
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Answer:
12/5 > -1
I hope this may help you
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