A platoon of soldiers marches on a road in steps accoridng to the sound of a marching band The band ils stoped and the soldiers are ordered to break the steps while crossign as bridge. Why?

When a troop crosses a suspension bridge, the soldiers are asked to break steps.

Assertion: soldiers are asked to break steps while crossing the bridge. Reason: The frequency of marching may be equal to the natural frequency of bridge and may lead to resonance which can break the bridge.

Assertion : The soldiers marching on a suspended brids are advised to go of stape Reason : frequency of marching step may match we the nature frequency of oscillation of bridge

STATEMENT-1 : A particle executing simple harmonic motion comes to rest at the extreme positions. STATEMENT-2 : Displacement and velocity of SHM differ in phase by (pi)/(2) rad. STATEMENT- 3 : Soldiers are asked to break steps while crossing the bridges.

A: When soldier cross a bridge, they are asked to break steps. R: If they do not break steps, then they will apply large force on bridge simutaneously.