This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
D) Car start to move along straight road. Step 1: Analyze the change in distance over equal time intervals. The car starts from rest (0 \, m at 0 \, s). We observe the distance covered in successive 3 \, s intervals: • From 0 \, s to 3 \, s: 0.8 \, m • From 3 \, s to 6 \, s: 2.0 - 0.8 = 1.2 \, m • From 6 \, s to 9 \, s: 4.3 - 2.0 = 2.3 \, m • From 9 \, s to 12 \, s: 8.0 - 4.3 = 3.7 \, m • From 12 \, s to 15 \, s: 11.5 - 8.0 = 3.5 \, m • From 15 \, s to 18 \, s: 14.0 - 11.5 = 2.5 \, m • From 18 \, s to 21 \, s: 14.8 - 14.0 = 0.8 \, m Step 2: Describe the motion based on the changing distances. The distance covered in each 3 \, s interval initially increases (from 0.8 \, m to 3.7 \, m), indicating that the car is accelerating. After the 12 \, s mark, the distance covered in each 3 \, s interval decreases (from 3.5 \, m to 0.8 \, m), indicating that the car is decelerating. The motion of the car is: The car starts from rest, accelerates for approximately the first 12 \, s to reach a maximum speed, and then decelerates for the remainder of the observed period. That's 4 down. 1 left today — send the next one.