A projectile is fired from the surface of the earth with a velocity of 5m/s and angle θ with the horizontal. Another projectile fired from another planet with a velocity of 3m/s at the same angle follows a trajectory which is identical with the trajectory of the projectile fired from the earth. The value of the acceleration due to gravity on the planet is (in m/s2): (given g=9.8m/s2)
A particle is moving such that its position coordinates (x,y) are (2m,3m) at time t=0, (6m,7m) at time t=2s and (13m,14m) at time t=5s. Average velocity vector (Vav) from t=0 to t=5s is:
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