Question

plz solve this fast plz ​

Answer 1

Answer:

v= 12m/s

Step-by-step explanation:

v = u +at

v = 20 + -4×2

v= 20-8

v= 12m/s

Answer 2

Answer:

option (b)- 12m/s.

Step-by-step explanation:

Initial speed(u)=20

Final speed (v) =?

a= -4

using first law of motion

v=u+at.

v= 20+-4×2

v= 12m/s.

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