The linear expansivity of a metal p Is twice that of metal q. When these metals are heated through the same temperature, their i
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Answer:
Explanation:
Speed is equal to distance over time.
The distance is 400 meters and the time is 50 seconds.
Substitute the values into the formula.
Divide.
The speed of the car is 8 meters per second.
KE =
Convert g in kg
Find v:
2KE = mv^2
v=√2KE/m
v=√2*31.5/0.00245
v=160 m/s
Convert g in kg
Find v:
2KE = mv^2
v=√2KE/m
v=√2*31.5/0.00245
v=160 m/s