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What was the speed of the car if it travelled 150 km of distance in 3 hrs?
40 km/h
50 km/h
36 km/h
42 km/h
50 km/h
Divide the distance by the time directly; here, 150 divided by 3 is 50.
Distance = 150 km, Time = 3 hours
Speed=TimeDistance
Divide the distance by the time directly; here, 150 divided by 3 is 50.
Misidentifying the formula as Time×Distance instead of Distance/Time.
Identify given values
The distance covered by the car is D=150 km and the time taken is T=3 hours.
D=150 km,T=3 hrs
Apply speed formula
Use the basic relationship between speed, distance, and time: Speed=TimeDistance.
S=3150
Calculate the result
Performing the division gives the speed of the car.
S=50 km/h
B is correct because the speed of the car is calculated as 150 km / 3 hours = 50 km/h.
Always ensure the units are consistent (e.g., km and hours result in km/h) before performing calculations in kinematics.
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