A car starts from rest and accelerates uniformly for 8.0 seconds . It reaches a final speed of 16 m/s. What is the average velocity of the car?
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s. What is the average velocity of the car?
A car starts from rest and accelerates uniformly for 8.0 seconds . It reaches a final speed of 16 m/s. What is the average velocity of the car?
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Answer:
Given that
Initial velocity=0
Final velocity=16m/s
Average velocity of car=Initial velocity +final velocity/2
=0+16/2
=16/2m/s
=8m/s.
Verified answer
☘️ Given :
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☘️ Solution :
Acceleration :
→ 16 = 0 + a × 8
→ 16 = 0 + 8a
→ 16 = 8a
→ 8a = 16
→ a = 16/8
→ a = 2
.°. The acceleration = 2 m/s²
Distance covered :
→ (16)² - (0)² = 2 × s
→ 256 - 0 = 2s
→ 2s = 256
→ s = 256/2
→ s = 128
.°. the distance covered = 128 m
Average speed :
→ 128/8
→ 16
.°. the average speed is 16 m/s.
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☘️ Answer :