Question

An object rolls east at a steady speed of 12 m/s for 3.0 seconds. What distance did it travel?
O A. 36 m
o B. 24 m
O C. 18 m
O D. 7.0 m

Answer 1

Answer:

$\boxed {\boxed {\sf A. \ 36 \ m}}$

Explanation:

The distance an object travels is the product of its speed and time.

$d=s \times t$

The object's speed is 12 meters per second and the time is 3 seconds.

• s= 12 m/s
• t= 3 s

Substitute the values into the formula.

$d= 12 \ m/s \times 3 \ s$

Multiply. Note that the units of seconds will cancel, so we are left with meters as our units.

$d= 12 \ m * 3$

$d= 36 \ m$

The object travels a distance of 36 meters and choice A is correct.