dry air is .m/s. Q.1. (B) Choose the correct alternative and rewrite the sentence: 1. v=u?+ 2as is the relation between (a) speed and velocity. (b)distanceandacceleration (c) displacement and velocity. (d)speedanddistance 2. The displacement that occurs in unit time is called (a) displacement. (b) distance (c)velocity (d)acceleration
Answers
v_{2}=u_{2}+2as
- this is the given equation
v is the final velocity
u is the initial velocity
a is the acceleration
s is the displacement
The above equation is the third equation of motion, which is derived from Newton's law of motion.
c. displacement, velocity-
As seen from the above equation, a relationship is established between displacement and velocity.
a. speed, velocity-
The above equation does not talk about speed, but velocity. As in the given equation, the velocity vector is considered.
b. distance, acceleration-
The above equation does not talk about distance, but displacement. Once again, the equation considers the displacement vector.
d. speed, distance-
The above equation does not talk about speed or distance, but velocity and displacement.