Hi, will u help me guys? :)
A special vehicle moves at a speed v on a flat frozen surface
Lakes. Maximum force tangent to the surface of the lake, with which the vehicle can operate on this surface,
it has an F value and does not depend on its velocity or the angle between the vector of this force
and the vehicle speed vector. The vehicle does not have a system recovering energy when braking.
How does this vehicle move if it changes speed to speed perpendicular to speed
initial, but with the same value
a) in such a way that the speed change lasts as short as possible?
b) in such a way that the work done could be the smallest?
