[فيزيائي كوول]

Exercise 1
A particle moving along the x axis is located at xi = 12m at ti = 1s and at xf = 4m at tf =3s. Find its displacement and average velocity during this time interval.

Exercise 2
The coordinate of a particle moving along the x axis varies in time according to the expression: m/s, where t is in seconds.
a- Find the average velocity in the time interval t = 0s to t = 2s.
b- Find the velocity at any time
c- Find the average acceleration in the time interval t = 0s to t = 2s.
d- Find the instantaneous acceleration at any time
e- Determine the acceleration at t = 2s.

Exercise 3
A particle starts from rest from the top of an inclined plane and slides down with constant acceleration. The inclined plane is 3m long, and it takes 4s for the particle to reach the bottom. Find:
a) The acceleration of the particle.
b) Its speed at the bottom of the incline.
c) The time it takes the particle to reach the middle of the incline.

Exercise 4
A particle starts from rest at t = 0s at the origin and moves in the x-axis with constant acceleration a = 3 m/s2
a- Find the coordinate of the particle at any time.
b- Determine the expression of velocity at any time.
c- Determine the speed of the particle at t = 6 s.

Exercise 5
A ball is thrown down vertically with an initial speed of from a height of h.
a- What is the speed just before it strikes the ground?
b- How long does the ball take to reach the ground?


Exercise 6
A ball thrown from the ground is given an initial velocity of 20m/s straight upward. Determine
a) The time needed for the ball to reach its maximum height.
b) The maximum height.
e) The velocity and position of the stone at t = 1s.
f) The velocity of the stone just before it hits the ground.
g) The total time the ball is in the air.

تكفون يا ذيابة ابي الحل بسرعة لان علي اختبار بداية الدراسة على هاذي الاسئلة