PROBLEM 1: Travelling with an initial speed of 70 km/hr, a car accelerates at 6000 km/hr² along a straight road. How long (in seconds) will it take to reach a speed of 120 km/hr? Also, through what distance (in meters) does the car travel during this time?
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- 4. From a speed of 75 kph, a car decelerates at the rate of 500 m/min? along a straight path. a. How far in meters, will it travel in 45 seconds? b. What is the car's velocity after 45 seconds?what distance (in meters) does the car travel during this time? PROBLEM 2: A bicyclist starts from rest and after travelling along a straight path a distance of 20m reaches a speed of 30 km/hr. Determine his acceleration (m/s²) if it is constant. Also, how long (in seconds) does it take to reach the speed of 30 km/hr? PROBLEM 3: If it takes 3 seconds for a ball to strike the ground when it is released from rest, determine the height in motors of the building from which it was released?2/98 A car is traveling around a circular track of 800-ft radius. If the magnitude of its total acceleration is 10 ft/sec² at the instant when its speed is 45 mi/hr, determine the rate at which the car is changing its speed.
- The cars travel over a 60m section of highway at constant speeds of 19, 20,and 25 m/s. a. Compute the time mean speed.b. Compute the space mean speed.Five cars are traveling at constant speeds 24, 31, 28, 35, 19 kph. respectively, in a uniform section of highway 4 km long. Determine the time mean and space mean speeds. Which one is higher, time mean speed or space mean speed? Can you think of the reason why this is so?A new light rail train can accelerate at 4.27 ft/sec2 and can decelerate at 4.59 ft/sec2. Its top speed is 50.0 mph. 1. How much time does it take the train to reach its top speed when starting from a stopped position at a station? Report your answer in seconds to one decimal place. seconds 2. How many feet does it take the train to reach its top speed? Report your answer to one decimal place. feet 3. What is the minimum station spacing to allow this train to reach its top "speed before it has to begin braking for the next station?" Report your answer to one decimal place. feet
- Five minivans and three trucks are traveling on a 1.5 mile circular track and complete a full lap in 90.0, 100.0, 102.0, 80.0, 90.0, 101.0, 85.0, and 95 seconds, respectively. Assuming all the vehicles are traveling at constant speeds: (a) what is the time-mean speed and space-mean speed of the minivans? (b) what is the time-mean speed and space mean speed of all vehicles?1. From a speed of 90 kph, a car accelerates at the rate of 10m/min/sec along a straight road . At the end of 30 seconds. What is the final velocity of the car in m/sec? 2. Determine the distanceThree cars travel over a 60 m. section of highway at constant speeds of 19, 20 and 25 m/s. Compute the time mean speed for this condition in m/s (two decimal places).
- A car is traveling at a speed of 80 fl/s when the brakes are suddenly applied, causing a constant deceleration of 10 fi/s?. Determine the time required to stop the car and the distance traveled before stopping.An automobile starting from rest speeds up to 40 meters per seconds with a constant acceleration of 4 meter per seconds square, runs at this speed for a time, and finally comes to rest with a deceleration of 5 meters per second square. If the total distance traveled is 1000 meters, find the (a) distance traveled covered during the acceleration, (b) distance traveled at constand speed, and (c) the total time of travel.Referring to the following diagram, what is the maximum constant velocity the automobile could attain over the top of the hill, while still staying in contact with the roadway? Mass of auto: 1,500 kg y = 20 (10 00 A 100 m