an object moves along a straight line with an acceleration of 2m/s square if its initial speed is 10m/s, what will be its speed 5 sec later?
Answers
Answered by
109
a=2m/s°2 ; u= 10m/s; t= 5sec
v = u+at
= v = 10 + 2X5
= v = 10+ 10
Therefore v= 20m/s
v = u+at
= v = 10 + 2X5
= v = 10+ 10
Therefore v= 20m/s
bkaur143:
so as according to the question we have to find speed not velocity
but speed is a scalar and velocity is a vector quantity
then how it can be same
Because you said that it is moving in a straight line, the magnitude is same, therefore speed and velocity will be same in this case.
okay , thanks
Answered by
40
Answer:
20m/s
Explanation:
Given:
a=2m/s^2
u=10m/s
t=5s
By using identity;
v=u+at
v=10+2×5
v=10+10
v=20m/s
therefore the speed is 20m/s
please mark it as brainliest
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