# At what speed the rain appears vertical to the man?

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## When a man is stationary rain drops appears to him falling vertically downwards?

Rain appears to fall vertically to a man when he is stationary but when he starts moving at 45 speed of 10 km/h: the – Vm=10km/h rain drops appears to C strike him at an angle of 45 from the vertical, then deter – Actual direction mine the actual of raindrop velocity of the rain drops. Do rokm/h =Vm MC SO.

## When a man walks at the rate of 3km h rain appears to fall vertically?

To a man walking at the rate of 3 km/h the rain appears to fall vertically downwards. When he increases his speed to 6 km /h it appears to meet him at an angle of 450 with vertical.

## When a man is stationary rain drops?

As per the observation of a stationary man the rain is falling vertically downward. Let the velocity of the rain with respect to stationary man beVR . This man now starts to run with a velocity V. Now, as per the observation of the running man the rain is falling at an angle 60° with the vertical.

## When a boy is stationary he observes rain drops are falling?

When he starts running with a velocity of 12 km/h observes that the rains is falling at an angle 60 with the vertical. The actual velocity of rain is.

## When it rains vertically downwards for a man walking on a horizontal road the ratio of velocity of rain as it appears and actual velocity of rain is found to be 2 √ 3?

When it is raining vertically down, to a man walking on road the velocity of rain appears to be 1. 5 times his velocity. To protect himself from rain he should hold the umbrella at an angle θ to vertical.