1
JEE Main 2023 (Online) 25th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A car travels a distance of '$$x$$' with speed $$v_1$$ and then same distance '$$x$$' with speed $$v_2$$ in the same direction. The average speed of the car is :

A
$${{{v_1}{v_2}} \over {2({v_1} + {v_2})}}$$
B
$${{2{v_1}{v_2}} \over {{v_1} + {v_2}}}$$
C
$${{2x} \over {{v_1} + {v_2}}}$$
D
$${{{v_1} + {v_2}} \over 2}$$
2
JEE Main 2023 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The velocity time graph of a body moving in a straight line is shown in the figure.

JEE Main 2023 (Online) 24th January Evening Shift Physics - Motion in a Straight Line Question 27 English

The ratio of displacement to distance travelled by the body in time 0 to 10s is :

A
1 : 1
B
1 : 3
C
1 : 4
D
1 : 2
3
JEE Main 2022 (Online) 29th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A juggler throws balls vertically upwards with same initial velocity in air. When the first ball reaches its highest position, he throws the next ball. Assuming the juggler throws n balls per second, the maximum height the balls can reach is

A
g/2n
B
g/n
C
2gn
D
g/2n2
4
JEE Main 2022 (Online) 29th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A ball is released from a height h. If $$t_{1}$$ and $$t_{2}$$ be the time required to complete first half and second half of the distance respectively. Then, choose the correct relation between $$t_{1}$$ and $$t_{2}$$.

A
$$t_{1}=(\sqrt{2}) t_{2}$$
B
$$t_{1}=(\sqrt{2}-1) t_{2}$$
C
$$t_{2}=(\sqrt{2}+1) t_{1}$$
D
$$t_{2}=(\sqrt{2}-1) t_{1}$$
JEE Main Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12