Question

1.85m/sec square = _kmphour square

Answer 1

Answer:

Given:

Speed of an object is given as 1.85 m/s

To find:

Speed of the same object in km/hr

Conversion:

Whenever we need to convert from metre/second to kilometers/hour, we follow these rules:

a) Multiply with (18/5)

b) Convert metre to km , and second to hour and then solve.

Calculation:

1.85 m/s = 1.85 × (18/5)

= 6.66 km/hr.

Certain information on speed:

1. It refers to change in position with respect to time.

2. v = ∆x/∆t

3. Its time dependent change is called acceleration.

Answer 2

Question :------

• convert 1.85m/sec = km/h

Formula used :------

• 1km = 1000m
• 1 hour = 3600 second .

Calculation :------

in 1 second distance covered = 1.85m

in 3600 second distance will cover = 1.85 × 3600 = 6660metre .

now,

1000 m ---------------- 1 km

1 m ---------------------- (1/1000)km

6660 m --------------- (1×6660)/1000 = 6.66km

Hence speed is = 6.66km/h ..

_____________________________________

with trick :--------

to convert m/sec speed into km/h mulitply it by 18/5 .

and

to convert km/h speed into m/sec mulitply it by 5/18

So, our speed will be :--

1.85×(18/5) = 0.37×18 = 6.66km/h

(Hope it helps you)