Suppose a body sliding up a ramp is decelerating at a constant rate. its speed will__ by the same amount each second

‘decrease’ is the missing word.

Deceleration means a decrease in speed, and constant deceleration means a linear decrease in speed in relation to time (i.e. speed decreasing by the same amount per time unit).

Let me know if you have any questions.

does anyone know or what?

the tires are rotating at 0.434 rpmlinear speed=45 m/sdiameter=0.550 mradius=0.275 mnow v= rωω= v/rω=45/0.275ω=163.6 rad/sω=163.6 rad/s (1rev/2π rad) (60s/1m)ω=1563 rpm