Question4. A car is traveling east. The graph shows the change in the velocity of the car over time, relative to the ground.
Acceleration
During this period, what is the eastward acceleration of the car relative to the ground? A. $5 \mathrm{~m} / \mathrm{s}^{2}$ B. $25 \mathrm{~m} / \mathrm{s}^{2}$ C. $30 \mathrm{~m} / \mathrm{s}^{2}$ D. $150 \mathrm{~m} / \mathrm{s}^{2}$