Question

rive sub-parts each. You are expected to answer any four s
parts in these questions.
17
Read the following and answer any four questions from 17 (i) to 17 (v)
1
A car of mass 1 metric ton starts from rest and accelerates to a speed of 72
km/h in 20 seconds. It then moves with a constant velocity for 80 seconds, and
is brought to rest in next 10 sec.
17(i)
What is the force acting on the car from 0 to 20 second?
a1000 N
b) 200 N
c) 500 N
d) 100 N
What is the force acting on the car from 20 second to 100 second?
a) 2000 N
b) 200 N
(ii)​

Answer 1

Answer:

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