[ابراهيم عبدالله الهاجوج]

اسئلة اختبار الفيزياء
ارجو من الاخوة الكرام الي يعرف الاجوبة ((يجاوب ))
بأبسط طريقة ممكنة وإذا يمكنه يشرح ما فيه مشكله والله ولي التوفيق ولا تنسوني من صالح دعائكم وكيفية حل الاسئلة كلها .
If Michael Jordan has a vertical leap of 1.29m 1-
Then what is has takeoff speed (vyi) and has hang time (total time to move upwards to the peak and then return to the ground )?
2- A particle moves along the x-axis Its position varies with time according to the expression x = 8 – 6t + t2 , where x is in meters and t in seconds.
a . Determine the displacement of the particle and its average velocity in the time interval 2 to 4s
b. Determine the acceleration of this object
3- A soccer ball is Kicked horizontally off a 22-meter high hill and lands a distance of 35.0 meters from
the edge of the hill. Determine the initial horizontal velocity (vxi) of the soccer ball (vyi = 0)
علما ان الارتفاع 22 متر وبعد سقوط الكرة 35 متر

1- True or False: A vector quantity is completely specified by a number with an appropriate unit plus a direction.
2- True or False : For an object launched vertically Upward ,the time to reach maximum altitude is greater than that to fall back down
3- True or False : the y component of the velocity at the horizontal range of projectile is zero
4- True or False : centripetal acceleration is ac = v2/r , where v and r are the instantaneous velocity and the radius of the curvature of the path, respectively.
5- A car moved 20 km East and the 60 km West in 2 hours . What is its average velocity ? Response ………وش الجواب ….km /h
6. True or False : the acceleration of the projectile at the highest point in its trajectory (maximum height ) is zero .