Question

what is the distance traveled by the car in the 20th second?
a) 100 m
b) 20 m
c) 10 m
d) 40 m

Explanation:

To solve the problem of finding the distance traveled by the car in the \(20^{\text{th}}\) second, we assume the car is moving with a constant velocity or in a uniformly accelerated motion (common in physics problems). However, since the problem lacks specific details about the motion (like initial velocity, acceleration, or a distance - time relationship), we can't perform a calculation. But if we assume a simple case where the car has a constant speed of \(v = 10\space m/s\) (a common value for such problems), the distance traveled in the \(n^{\text{th}}\) second for a body moving with constant speed \(v\) is \(d=v\times1\space s\) (because the time interval of the \(n^{\text{th}}\) second is \(1\space s\)). If \(v = 10\space m/s\), then the distance traveled in the \(20^{\text{th}}\) second is \(10\times1= 10\space m\).

Assuming the car moves with constant speed (or uniform motion), the distance in the \(n^{\text{th}}\) second (a 1 - second interval) is speed×1 s. If speed is 10 m/s, distance in \(20^{\text{th}}\) second is 10 m.

Answer:

C) 10 m