Question 1
In what situation would a negative acceleration indicate that an object is speeding up?
Question 2
During reaction time, how far will an object fall if it has a reaction time (tr) of 2 seconds? (g = 9.8 m/s²)
Question 3
If two cars are moving in opposite directions with velocities 25 m/s and 15 m/s respectively, what is their relative velocity?
Question 4
How does the direction of velocity relative to acceleration determine whether an object is accelerating or decelerating?
Question 5
What happens to the stopping distance if the friction coefficient increases, keeping the initial velocity constant?
Question 6
Given an initial velocity (u) of 20 m/s and a friction coefficient (µ) of 0.5, calculate the stopping distance using the formula ds = u² / (2μg). (g = 9.8 m/s²)
Question 7
A train decelerates from 60 m/s to a stop in 10 seconds. How far does it travel during this time?
Question 8
What does the formula `tr = sqrt(2 * dr / g)` represent in the context of motion in a straight line?
Question 9
If car A is traveling at 50 km/h and car B at 30 km/h in the same direction, what is the relative velocity of car A with respect to car B?
Question 10
Which of the following is an example of positive deceleration?
Question 11
What is the primary difference between deceleration and negative acceleration?
Question 12
What is the stopping distance for an object with an initial velocity of 30 m/s and a deceleration of 5 m/s²?
Question 13
How is the stopping distance affected if the initial velocity is doubled?
Question 14
What is the formula for calculating relative velocity of A with respect to B?
Question 15
If a car initially traveling at 20 m/s decelerates uniformly to a stop in 5 seconds, what is its acceleration?