Question

an object starting from rest moves uniformly with a speed of 40 m per second for 10 seconds then it continues with the same speed for next 15 seconds objects is an obstacle in front of him he applies break and stop after 5 seconds then calculate the acceleration in 10 seconds next 15 seconds and last 5 seconds draw the particular draught and calculate the distance travelled by object

Answer 1

$40 \times 10 + 40 \times 15 + 40 \times 5$
is the answer