If it takes a bicyclist 25 seconds to reach a speed of 10 km/h from rest, what is her acceleration? For the next 10 minutes, she moves at the constant speed of 10 km/h, and at this time, she applies her brakes, and the bicycle decelerates to a full stop in 5 seconds. What is the total distance travelled by the bicyclist? Determine the average speed of the cyclist during the first 25 seconds, 620 seconds, and 625 seconds.

Problem: Tests reveal that a normal driver takes about 0.75 s before he or she can react to a situation to avoid a collision. It takes about 3 s for a driver having 0.1%% alcohol in his system to do the same Questions 1: if such drivers are traveling on a straight road at 30 mph (44 ft/s) and their cars can decelerate at 23 ft/s^2, determine the shortest stopping distance d for normal driver from the moment he or she see the pedestrians. Express your answer with the appropriate units. Question 2:  Determine the shortest stopping distance d for drunk driver from the moment he or she see the pedestrians.  Express your answer with the appropriate units. Please help me with both of these questions, make sure to show neat hand writing and explaintions. Thnak you

QUESTION 10 One lane of a uniform section of highway has an optimum density of 70 vehicles per mile and an optimum speed of 35 miles per hour. Calculate the free flow speed (mph).

A train shown is traveling at a speed of 45mi/hr. A constant braking force of 4300 Ibs is applied to car B. A) What is the time required for the train to stop after the brakes are applied? B) What is the force in the coupling between the cars while the train is slowing down

Assume you are observing traffic in a single lane of a highway at a specific location. You measure the average headway and average spacing of passing vehicles as 3.2 seconds and 20 m, respectively. Calculate the flow, average speed, and density of the traffic stream in this lane.

During 5 successive 1.07 min intervals, a runner moves at the following constant speeds: 0,396 km/min, 0.248 km/min, 0.160 km, 0.160 km/min, and 0.320 km/ Compute the total distance traveled and the average speed.