This specific question applies the concept of relative velocity. Relative velocity is describes as the velocity of an object with respect to another object, whether static or moving. For this problem, the correct statement is t<span>he spotter above the tunnel will observe the speed of the spy as 95 km/h, and the person in the car will observe the speed of the spy as 200 km/h. The following are the justification, relative speed of the spotter at the tunnel is equal to velocity (Vss) = velocity spy relative to the ground (Vsg) + V ground relative to the spotter (Vgs). Thus, V = 95 + 0 km/h = 95 km/h. Note that the sign of velocity is dependent on the direction, hence, opposite direction is equal to negative velocity. For the second condition, velocity of the spy in reference person in the car is equal to velocity of the spy reference to ground plus the velocity of the ground reference to the person in the car. Thus, V = 95 km/h + 105 km/h = 200 km/h. Please be cautious in assigning the sign of the velocity.</span>
False I would say cause close together is more pressure so more energy ,right?
Answer: A
Explanation: The amount of work done by Joe is equal to the amount of work done by Bob, because both have the same weight, same bicycle, cycling the same road and started the same time but the average power exerted by Joe is greater than that of Bob because Joe climbed a mountain while Bob passed a lower grade road.
Is head the answer? I mean common sense thinks that your head would have to be faced forward with the rest of his body already having a certain position pf where they are. All that's left is the head.