561. A ball bounces 2.5 meters after falling 10 meters from height onto the surface. The average acceleration during contact is as follows if the duration of contact with the floor is 0.01 seconds:
A. 2100 m/s²
B. 1400 m/s²
C. 1200 m/s²
D. 1100 m/s²
562. In 20 seconds, a car at rest can accelerate uniformly to 144 km/h, covering the following distance:
A. 20 m
B. 400 m
C. 1440 m
D. 2880 m
563. A 120-kg vehicle travels at a uniform speed of 108 kilometers per hour. The force required to bring the vehicle to a stop in 10 seconds is:
A. 120 * 10.8 N
B. 180 N
C. 720 N
D. 360 N
564. A passenger in a lift drops a coin as the lift descends at the same speed. The coin’s acceleration toward the ground will be:
A. Zero
B. g
C. -g
D. v+g
565. The pressure is 2.5 atmospheres (atm). What is it in Pascal?
(A) 2.53×10⁸ Pa
B) 2.53×10⁵ Pa
C) 2.53×10⁴ Pa
D) 2.53×10⁷ Pa
566. Blood pressure is normally measured with the effect of the Sphygmomanometer around the arm. Suppose that the blood pressure were measured with the cuff around the calf of the leg of a standing person?
A) Greater than it is for the arm
B) Less than it is for the arm
C) The same as it is for the arm
D) Cannot be taken
567. A test car moves at a constant speed of 10 m/s around a circular road of radius 50 m. Find its acceleration?
(A) 50.0 m/s²
(B) 5.0 m/s²
C) 2.0 m/s²
(D) 0.2 m/s²
568. Diamond has?
(A) Three valence electrons
(B) Two valence electrons
(C) One valence electron
D) Four valence electrons
569. A vehicle travels 40 kilometers per hour from A to B and 60 kilometers per hour back. He will move at the following rate:
A. 40 Kilometer per hour
B. 48 kilometer per hour
C. 50 kilometer per hour
D. 60 kilometer per hour
570. Two forces acting at a point have a combined magnitude of 18 and a resultant magnitude of 12. Their magnitudes are as follows if the result is at 90 degrees with a force of a smaller magnitude:
A. 3, 15
B. 4, 14
C. 5, 13
D. 6, 12
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