Q.1- Find the distance travelled by a particle moving in a straight line with uniform acceleration, in the 10th unit of time.

If the acceleration is constant, the movements equations are:

a(t) = A.

for the velocity we can integrate over time:

v(t) = A*t + v0

where v0 is a constant of integration (the initial velocity), for the distance traveled between t = 0 units and t = 10 units, we can solve the integral:

Where to obtain the actual distance you can replace the constant acceleration A and the initial velocity v0.

the total distance traveled by the car is

30km + 49km = 79 km .