[" The Amanativest observes the rain falling vertically.When he waks at "4km/h" ,he has to hold his undrellatian "],[" angle of "53^(@)from" the vertical.Find the velocity of raindrops."],[" Solution "]

A man when standstill observes the rain falling vertically and when he walks at 4 km//h he has to hold his umberella at an angle 53^(@) from the vertical. Find velocity of the raindrops.

A man when standstill observes the rain falling vertically and when he walks at 4 km//h he has to hold his umberella at an angle 53^(@) from the vertical. Find velocity of the raindrops.

A man when standstill observes the rain falling vertically and when he walks at 4 km//h he has to hold his umberella at an angle 53^(@) from the vertical. Find velocity of the raindrops.

A man when standstill observes the rain falling vertically and when he walks at 4 km//h he has to hold his umberella at an angle 53^(@) from the vertical. Find velocity of the raindrops.

By the term velocity of rain, we mean velocity with which raindrops fall relative to the ground. In absence of wind, raindrops fall vertically and in presence of wind raindrops fall obliqucly. Moreover raindrops acquire a constant terminal velocity due air resistance very quickly as they fall toward the carth. A moving man relative to himself observes an altered velocity of raindrops. Which is known as velocity of rain relative to the man. It is given by the following equation. vec(v)_(rm)=vec(v)_(r)-vec(v)_(m) A standstill man relative to himself observes rain falling with velocity, which is equal to velocity of the raindrops relative to the ground. To protect himself a man should his umbrella against velocity of raindrops relative to himself as shown in the following figure. A man walks in rain at 72 cm/m due east and observes the rain falling vertically. When he stops, rain appears to strike his back at 37^(@) from the vertical. Find velocity of raindrops relative to the ground.

By the term velocity of rain, we mean velocity with which raindrops fall relative to the ground. In absence of wind, raindrops fall vertically and in presence of wind raindrops fall obliqucly. Moreover raindrops acquire a constant terminal velocity due air resistance very quickly as they fall toward the carth. A moving man relative to himself observes an altered velocity of raindrops. Which is known as velocity of rain relative to the man. It is given by the following equation. vec(v)_(rm)=vec(v)_(r)-vec(v)_(m) A standstill man relative to himself observes rain falling with velocity, which is equal to velocity of the raindrops relative to the ground. To protect himself a man should his umbrella against velocity of raindrops relative to himself as shown in the following figure. A man walks in rain at 72 cm/m due east and observes the rain falling vertically. When he stops, rain appears to strike his back at 37^(@) from the vertical. Find velocity of raindrops relative to the ground.

To a man walking at the rate of 4 km/h the rain appears to fall vertically. When he increases his speed 8 km/h it appears to meet him at an angle of 45 with vertical. Find the angle made by the velocity of rain with the vertical and its value.