Question

A man walks 8 km in 1 hour 20 minutes. What is the speed of the man in km/hr?
Send with solution plz​

Answer 1

Step-by-step explanation:

A ball is thrown horizontally with speed 20 m//s from a tower of height 80 m. (a) After how much time and at what horizontal distance from the foot of tower it strikes the ground. (b) Find the magnitude and direction of the velocity with which it strikes the ground. ( c) Find the velocity vector of ball after 1 s. (d) Trajectory followed by the ball.

Answer 2

Question:-

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A man walks 8 km in 1 hour 20 minutes. What is the speed of the man in km/hr?

Given:-

A man walks 8 km in 1 hour 20 minutes.

To Find:-

What is the speed of the man in km/hr?

Solution:-

⇒$\sf\red{1hr=60min}$

⇒so,1hr 20min = 60+20min

⇒1hr 20min = 80mins

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so,the man's speed = 8000m per 80mins

➺so the man's speed per 1min = $\cancel\frac{8000}{80}$

➺the man's speed per 1 mins = 100m

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$\\ \\ ⟼speed \: p hr = 100 \times 60meters \\ \\ ⟼speed \: p hr \: = 6000meters \: \: \: \: \: \: \\ \\ \blue {\underline{ \boxed{ \purple {\mathfrak{\therefore \: the \: speed \: of \: the \: man \: is \: 6km \: phr}}}}}$

hope this helps.!!