Question

please write full steps​

Answer 1

Explanation:

i) F=M×v-u/t

=50 × 120-0/3

=50×120/3

=200N

ii) F=M × V-U /T

50× 0-120/4

=50× -120/4

=-150N

iii)between 3 and 6 seconds because no increase decrease in velocity

Answer 2

Answer:

Explanation:

Force = mv/t

so slope under velocity time graph will give force.

(a) 0 => 3 slope = 120/3 = 40 × m = 40× 50 = 2000N

(b) 6 => 10 slope = 120/4 = 30 × 50 = 1500 N

(c) from interval 3 ==> 6 sec slope is zero so force is zero.