1
JEE Main 2018 (Online) 15th April Morning Slot
+4
-1
An automobile, travelling at $$40\,$$ km/h, can be stopped at a distance of $$40\,$$ m by applying brakes. If the same automobile is travelling at $$80\,$$ km/h, the minimum stopping distance, in metres, is (assume no skidding) :
A
$$45\,$$ m
B
$$100\,$$ m
C
$$150\,$$ m
D
$$160\,$$ m
2
JEE Main 2018 (Online) 15th April Morning Slot
+4
-1
The velocity-time graphs of a car and a scooter are shown in the figure. (i) The difference between the distance travelled by the car and the scooter in $$15$$ $$s$$ and (ii) the time at which the car will catch up with the scooter are, respectively.

A
$$112.5$$ $$m$$ and $$22.5$$ $$s$$
B
$$337.5$$ $$m$$ and $$25$$ $$s$$
C
$$112.5$$ $$m$$ and $$15$$ $$s$$
D
$$225.5$$ $$m$$ and $$10$$ $$s$$
3
JEE Main 2017 (Online) 9th April Morning Slot
+4
-1
A car is standing 200 m behind a bus, which is also at rest. The two start moving at the same instant but with different forward accelerations. The bus has acceleration 2 m/s2 and the car has acceleration 4 m/s2 . The car will catch up with the bus after a time of :
A
$$\sqrt {110} \,s$$
B
$$\sqrt {120} \,s$$
C
$$10\,\,\sqrt 2 \,s$$
D
15 s
4
JEE Main 2017 (Online) 8th April Morning Slot
+4
-1
Which graph corresponds to an object moving with a constant negative acceleration and a positive velocity ?
A
B
C
D
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