Which object has a constant speed? a racecar starting a race a car traveling the speed limit a bicycle coming to a stop a ball falling off a table

The correct answer is "a car traveling the speed limit".

Explanation:

In uniform motion, the speed is constant. Suppose, a car is travelling at constant speed. Here, the acceleration is zero. As there is no change in the rate of change of velocity.

In the given options,

"A race car starting a race": Here, the car will change its speed. The speed is not constant in this case.

"A car traveling the speed limit": Here, the car will not change its speed. The speed of the car is constant.

"A bicycle coming to a stop": The final speed of the bicycle is zero when it comes to a stop.  Here, the car will change its speed. The speed is not constant in this case.

"A ball falling off a table": Here, the car will change its speed. The speed is not constant in this case. The initial velocity is zero.

The correct option is "a car traveling the speed limit".