A cart is initially stationary and subsequently travels in a northward direction. The provided graph illustrates the cart's velocity concerning the time variable, denoted as 't.' Refer to the graph to address any subsequent inquiries.

Question

What is the cart's acceleration at t=8 seconds based on the graph?
20 m/s2
0 m/s2
-20 m/s2
10 m/s2

Answer 1

Based on the graph, the cart's velocity at t=8 seconds is 20 m/s, which means it is moving in a northward direction with a constant velocity. Since the velocity is constant, the cart's acceleration is 0 m/s^2. Therefore, the correct answer is 0 m/s^2.