All formula related to motion for class 9th?
Answers
Answer:
(1) 1st equation formula -v=u+at
(2) 2nd equation formula -s=ut+1/2at^2
(3)3rd equation formula -v^2=v^2+at
(4)momentum=mass × velocity
(5)force=mass ×acceleration
(6) acceleration =change in velocity /time take
(7)speed =distance /time
(8)velocity =displacement /time
(1) 1st equation formula -v=u+at
(2) 2nd equation formula -s=ut+1/2at^2
(3)3rd equation formula -v^2=v^2+at
(4)momentum=mass × velocity
(5)force=mass ×acceleration
(6) acceleration =change in velocity /time take
(7)speed =distance /time
(8)velocity =displacement /time
{9}speed = total distance travelled / time required
{10}.velocity = displacement / time
(11a).(a) acceleration = change in velocity / time
(b) acceleration = a = final velocity - initial velocity / time
therefore, a = (v-u) / t
(12). three equations of motion:-
(a) v = u + at....relation between velocity and time
(b) s = ut + 1/2at square......relation between displacement and time
(c) v square = u square + 2as......relation between displacement and velocity
(13) rate of change of momentum = change in momentum / time
( rate of change of momentum = mv - mu / t = m(v-u) / t = ma )
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