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This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
1. |
A driver takes 0.20 s to apply the brakes after he sees a need for it. This is called the reaction time of the driver. If he is driving at a speed of 54km/h and the brakes cause a deceleration of 6.0m/s2, find the distance travelled by the car after he sees the need to put the brakes. |
A. | 18.75m |
B. | 225 m |
C. | 21.5 m |
D. | 12 m |
Answer» D. 12 m | |
2. |
A jet plane starts from rest with an acceleration of 3m/s2 and makes a run for 35s before taking off. What is the minimum length of the runway? |
A. | 105 m |
B. | 1837.5 m |
C. | 2451 m |
D. | 1204 m |
Answer» C. 2451 m | |
3. |
What is the acceleration of a bus approaching a bus stop? |
A. | Uniform acceleration |
B. | Instantaneous acceleration |
C. | Average acceleration |
D. | Negative acceleration |
Answer» E. | |
4. |
A train is under a journey of several hundred kilometers. How can it be regarded? |
A. | An object in motion |
B. | An object under rest |
C. | An object under absolute motion |
D. | A point object |
Answer» E. | |