Question

please help to find minimum time to a car traveling from rest at 5m/sec² acclaration and retarded at 10 5m/sec² and covers 1500 km

Answer 1

so u hv two retardation

Answer 2

a1=-5m/s
a2=-105m/s

Answer 3

no sorry, first one is accelaration

Answer 4

ok

Answer 5

obviously the car with 5m/s^2 acceleration will take less time

Answer 6

because velocity increases

Answer 7

from rest to 5 m/sec² accelaration, them 10m/sec² is retardation to stop. calculate minimum time to travel 1500 mtr

Answer 8

i c

Answer 9

may be 60-70% of time it will accelerate and then in 30-40% time it will be retarded

Answer 10

any more information u hv

Answer 11

no.

Answer 12

less time means larger velocity

Answer 13

so if the car covers total 1500 m by acceleration 5m/s then it will take less time

Answer 14

nd the car will go by retardation -10m/s. covers 0m distance

Answer 15

the above is my opinion

Answer 16

ok