KinematicsHard
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 =
.Create a free account to view solution
View Solution FreeMore Kinematics Questions
At what angle should a body be projected with a velocity 24 ms-1 just to pass over the obstacle 14 m high at a distance ...A projectile is given an initial velocity of m/s, where is along the ground and is along the vertical. If g = 10 m/s2, t...Which of the following helps in determining the temperature of the star ?...A ball is thrown upwards. Its height varies with times as follows : If the accelertion due to gravity is 7.5 m / s2 then...The velocity of projection of a projectile is (6î + 8ĵ) ms-1. The horizontal range of the projectile is...