Question

Position of a body in motion changes with time according to equation, x = 3t-2t + 10. Where x is in meter and t is in

second. What will be the speed of a particle at t=5 s?​

Answer 1

Explanation :

Step 1: 3t -2t + 10

t=5

Step 2: 3*5-2*5+10

Step 3: 15-10+10

Step 4:5+10

step 5: 15

Now,

speed = distance/ time

therefore, 15/5

you get 3

So, The answer is 3