541. What is the acceleration if a body starts at rest and travels 120 cm in six seconds?
A. 0.20 M/S²
B. 0.027 M/S²
C. 0.218 M/S²
D. 0.03 M/S²
542. A body breaks free of its rest. In the final second of its motion, it travels the same amount of distance as it did in the first three seconds. The body has succumbed to a period of:
A. 3 s
B. 5 s
C. 7 s
D. 9 s
543. A car travels the first half distance between two places with a speed of 30 km/h and remaining half with a speed of 50 km/h. The average speed of the car is:
A. 37.5 Km/h
B. 10 Km/h
C. 42 Km/h
D. 40 km/h
544. If a train going at 72 km/h is to be brought to rest in a distance of 200 meters, then its impediment ought to be:
A. 20 MS⁻²
B. 10 MS⁻²
C. 2 MS⁻²
D. 1 Ms⁻²
545. A ball is dropped downwards following 1 second another ball is dropped downwards from the same point. How far apart are they now, after three seconds?
A. 25 M
B. 20 M
C. 50 M
D. 9.8 M
546. In the first, second, and third seconds, a body falling from rest travels the following distances:
A. 1:2:3
B. 1:3:5
C. 1:4:9
D. None of the above
547. For coherence two light sources must have?
A) Same Wavelength and be in phase
B) Be in phase and have the same wavelength
C) Be in phase, have the same wavelength, and the same frequency
D) None of the above
548. Equal charge q1 and q2 (q1=q2) are separated by 2m. The force between them is F=9 N. What are the charges?
A) 63.00µC
B) 6.30µC
C) 0.63µC
D) 0.063µC
549. A truck of mass 750 Kg moving at 30 km/h hits a stationary dumpster of mass 1000 Kg. The two vehicles stick and move together after the collision. What is their speed?
A) 1.20 Km/h
B) 12.85 Km/h
C) 41.66 Km/h
D) Zero Km/h
550. A car of mass 1000 Kg was brought to rest on a level road by braking and 500 KJ of heat were produced. Find the speed of the vehicle just before the brakes were applied?
A) 31.62 m/s
B) 63.24 m/s
C) 632.4 m/s
D) 22.36 m/s
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