Question

A body is moving with a constant speed of 72 km/h on a rough horizontal surface. The net force acting

on the body is​

Answer 1

Explanation:

It was named for a famous astronomer. ...

The telescope was several decades in the making. ...

Answer 2

Answer:

40 m

Explanation:

${v}^{2} - {u}^{2} = 2as \\ {0}^{2} - {20}^{2} \div 2( - 0.5 \times 10) \\ 400 \div 10 = 40 \\ ans = 40m$