Answer :

Force applied (F) = -10 N (since the force is acting in the opposite direction of motion or opposing the motion)

Mass of body (m) = 2.5kg


Initial velocity of body (u) = 20m/s


Final velocity of body (v) = 0m/s


According to Newton's second law of motion


F = ma


-10 = 2.5×a


-10/2.5 = v-u/t (since a = v-u/t)


-4t = 0 - 20


t = -20/-4


t = 5 sec


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

The acceleration Lakhmir Singh & Manjit Kaur - Physics

A passenger in a Lakhmir Singh & Manjit Kaur - Physics