A train starting from rest first accelerates uniformly up to a speed of … for time …, then it moves with a constant speed for time …. The average speed of the train for this duration of journey will be (in …) :

Option A. To find the average speed of the train for the duration of the journey, we need to know the total distance covered by the train and the total time taken.

Motion in a Straight Line

JEE Main 2024 · 6 Apr, Morning shift · Q7831

PhysicsHard65×since 2002Q7831

A train starting from rest first accelerates uniformly up to a speed of

80 \mathrm{~km} / \mathrm{h}

for time

t

, then it moves with a constant speed for time

3 t

. The average speed of the train for this duration of journey will be (in

\mathrm{km} / \mathrm{h}

) :

Motion in a Straight Line

JEE Main 2024 · 6 Apr, Morning shift · Q7831

PhysicsHard65×since 2002Q7831

A train starting from rest first accelerates uniformly up to a speed of

80 \mathrm{~km} / \mathrm{h}

for time

t

, then it moves with a constant speed for time

3 t

. The average speed of the train for this duration of journey will be (in

\mathrm{km} / \mathrm{h}

) :

Motion in a Straight Line

More on Motion in a Straight Line

Motion in a Straight Line

More on Motion in a Straight Line