Question

a 20m long van crosses a 100m bridge with a velocity of 40km/h.gind the time taken by the van to cross the bridge.​

Answer 1

Answer:

In order to cross the bridge completely, then it must cover distance -

it's length + bridge's length

→ 20m + 100m

→ 120 m .

So,

• Distance = 120m.
• Speed = 40 km/h.

→ 40 × 5/18

→ 11.1 m/s

• Time = ?

Speed = distance / Time

→ T = 120 / 11.1

→ 10.8 s

Therefore, van will take 10.8 seconds to cross the bridge.