Your older brother is driving at 35 km/h when the road suddenly descends 15 m into a valley. he takes his foot off the accelerator and coasts down the hill. just as he reaches the bottom you see a policeman hiding behind the speed limit sign that reads "70 km/h." is your brother going to get a speeding ticket?

Yes

Explanation:

m = Mass of car

g = Acceleration due to gravity = 9.81 m/s²

u = Initial velocity = 35 km/h

v = Final velocity

h = Altitude = 15 m

Here, the energy is conserved

Converting to km/h

The speed of the car is 70.98678 km/h is greater than 70 km/h.

Hence, a speeding ticket will be given

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation: