An object in free fall has a speed of 60 m/s.One second later its speed is
A)10 m/s.
B)30 m/s.
C)60 m/s.
D)70 m/s.

Question

Quizplus · Accepted Answer

In free fall, an object experiences a constant acceleration due to gravity, which is approximately 9.8 m/s^2 near the Earth's surface. Therefore, after one second, the object's speed would increase by 9.8 m/s.

60 m/s + 9.8 m/s = 69.8 m/s

Rounding to the nearest whole number, the object's speed one second later would be 70 m/s. Therefore, the correct choice is D.

An Object in Free Fall Has a Speed of 60