Why do you lurch backwards when a bus suddenly picks up speed?

When a bus abruptly starts moving, the passengers tend to slide backward due to inertia, as the passenger's inertia tends to oppose the bus's forward motion. Hence, the passenger tends to fall back when the bus accelerates forward.



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When the running bus stops suddenly, the passengers are jerked forward because due to inertia of motion the passengers tend to remain in their state of motion even though the bus has come to rest.

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This is because of inertia of motion. The part of our body, which is in contact with the bus, changes the direction of motion. However, the rest of the body tries to move in the same direction as before because of inertia of motion.

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When a bus starts suddenly,its passengers tend to fall backwards because due to their inertia, the passengers tend to remain in a state of rest even when the bus starts moving.

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The lower part of the body of passengers (which is in contact with the bus) comes to rest, but because of inertia, the upper part of the body tends to keep on moving. As a result of it, the rider falls forward.

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When the bus suddenly takes a sharp turn, the lower portion of passengers which is contact with the bus tends to move in that direction but the upper portion of the passengers throw an outside. This happens due to the INERTIA OF DIRECTION.

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A getting passenger getting down from a moving bus, falls in the direction of the motion of the bus. This is because his feet come to rest on touching the ground and the remaining body continues to move due to inertia of motion.

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To get off on the left side, right foot first is like so:
  1. slide right foot to left (but behind left foot), apply weight.
  2. slide left foot to left.
  3. slide left forward, apply weight.
  4. bring left-foot forward (take the first step completely off train)


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If I jump up in a moving bus will I land on the same spot where? If the bus is traveling at constant speed, yes. You're moving with the same speed as the bus, and you'll keep moving with this speed while you're jumping. If the bus is accelerating while you jump, you will land in a slightly different spot.

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iv. What will happen to a person sitting inside a bus when a bus turns a corner to the left suddenly? When a bus take a sharp turn, passengers fall in the outward direction. It is due to inertia that they want to continue to their motion in a straight line and thus falls outwards.

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The man jumping out from a moving bus possesses the inertia of motion. As the man lands on the gorund, feet come to rest immediately while the upper part of body continue to move due to inertia of motion and hence the person may fall forward.

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