Give answer who really know all answers(2-6questions) . If you are an Indian who will answer all the questions and correctly.
Answers
Answer:
Q. 1
b) Uniform accelerated motion
c) Given :-
Distance at 4 sec = 10 m (s)
Distance at 7 sec = 28 m (s ')
Time = 7 - 4 = 3
Total distance = s - s ' = 18 m
we know that ,
Speed = Total distance/Total time
= 18/3 = 6 m/s
Q. 3
b) rest
Q. 4
b) uniform accelerated motion
c) Given :-
Initial speed = 2 m/s
Final speed = 14 m/s
Time = 6 sec
Acceleration = a (let)
we know that ,
v = u + a*t
14 = 2 + 6a
6a = 12
a = 2 m/s
d) Given :-
Initial speed = 2 m/s
Final speed = 14 m/s
Acceleration = 2 m/s
Time = 6 sec
Displacement = s (let)
we know that ,
2*a*s = v^2 - u^2
4*s = 196 - 4
s = 192/4
s = 48 m
Q. 5
b) Uniform reterated motion
c) Given :-
Initial speed = 10 m/s
Final speed = 0 m/s
Time = 5 sec
Acceleration = a (let)
we know that,
v = u + a*t
10 = 5a
a = 2 m/s
d) Given :-
Initial speed = 10 m/s
Final speed = 0 m/s
Acceleration = 2 m/s
Time = 5 sec
Displacement = s (let)
we know that ,
2*a*s = v^2 - u^2
4s = 100 - 0
s = 25 m
e) It is uniform retardation motion because the speed is getting reduce after every second
__________________________
NOTE :-
pls make it brainliest answer
