Based on the data table, find the acceleration and then predict the velocity at the time 3.5 seconds.
2 answers:
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Answer: 1.274 N minimum force required to slide the book across the surface
Explanation:
Mass of the book = m = 0.2 kg
Normal force acting on the book,N = mg
Coefficient of friction = = 0.65
Minimum force required to slide the book across the surface= F
1.274 N minimum force required to slide the book across the surface
Answer: 62.5 km/hour is the average velocity of the train.
Explanation:
Displacement of the train = 100 km + 150 km = 250 km
Total time train took =1 hour 15 min+ 45 min + 2 hours = 240 min = 4 hours
Average velocity=
62.5 km/hour is the average velocity of the train.