Hard
Question
A particle has initial velocity (
) and has acceleration (
). Its speed after 10 s is
) and has acceleration (). Its speed after 10 s isOptions
A.7 units
B.7√2 units
C.8.5 units
D.10 units
Solution
Here,
Initial velocity,
Acceleration,
Time, t = 10 s
Let
be the velocity of a article after 10 s.
Using
∴
Speed of the particle after 10 s =
.
Initial velocity,
Acceleration,
Time, t = 10 s
Let
be the velocity of a article after 10 s. Using
∴
Speed of the particle after 10 s =
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