A car is travelling along a straight road. It accelerates uniformly from rest to a speed of 15 ms-1 and maintains this speed for 10 minutes It then decelerates uniformly to rest. The acceleration is 5 ms-2 and the deceleration is 8 ms-2...
3. A car travels along a straight road. Which of the following statements is correct about the car? C35m30 m40 m t=3s t=2 s t=1s t=0s A. The car increases its acceleration from 0 s to 3 s. B. The car travels at a constant speed throughout the joumey. C. The average speed...
A car is traveling on a straight stretch of roadway, and the speed of the car is increasing at a constant rate. At time 0 seconds, the speed of the car is v0 meters per second; 10 seconds later, the front bumper of the car has traveled 125 meters and the
A car A is travelling on a straight level road with a uniform speed of 60 km/h. It is followed by another car B which in moving with a speed of 70 km/h. When
A car is moving on a straight road. The engine provides a force of 2000 N. The frictional force is 500 N. What is the net force acting on the car? A. 1500 N B. 1600 N C. 1700 N D. 1800 N 相关知识点: 试题来源: 解析 A。Net force = Force by engine - Frictional force ...
9. A car traveling along a straight road is clocked at a number of points. The data from the observations are given in the following table, where the time is in seconds, the distance is in meter, and the speed is in meter per second. T...
1 . A train car moves along a long straight track. The graph (曲线) shows the position as a function of time for this train. The graph shows that A . slows down all the time B . speeds up all the time C . speeds up part of the time and slows down part of the time D...
A train car moves along a long straight track. The graph (曲线) shows the position as a function of time for this train. The graph shows that ___. A. slows down all the time B. speeds up all the time C. speeds up part of the time and slows down part of the time D. moves ...
A long a straight road, a car moving with a speed of 130 km/h is brought to a stop in a distance of 210 m. (a) Find the magnitude of the deceleration of the car ( assumed uniform ). (b) How long does it take for the car to stop ?
The toy car is driven straight ahead. “straight ahead” tells us the movement is in a ___ line. A. curved B. broken C. straight D. wavy 相关知识点: 试题来源: 解析 C。“straight ahead”表示笔直向前,是直线;“curved”是弯曲的;“broken”是破碎的;“wavy”是波浪形的。 反馈 收藏 ...