Question

A box is moving with constant speed 10 m/s on a rough surface under the effect of external force

30 N. What will be value of frictional force on block?

(1) 0 N (2) 10 N (3) 20 N (4) 30 N​

Answer 1

Answer:

20N ans

Make me brainliest

Answer 2

Answer:

the box is moving with constant speed is equal to 10 10 x 30 your answer is 300

then first 10 x 0 is equal to zero then 10 X 10 is equal to hundred then 30 multiply 10 is equal to 300 all answer are done mark me as brainlist please