Question

a ship is moving in a speed of 56 km/h after 1 sec. it is moving at 58 km/h . find the acceleration .

Answer 1

given that ,
  t = 1s = 1 /3600 hrs.
   initial velocity ( u ) = 56 km/h 
    final velocity ( v ) = 58 km/h 
      acceleration  ( a )  = $\frac{v-u}{t}$
                                    = $\frac{58-56}{ \frac{1}{3600} }$
                                        = 2 * 3600 /1 = 7200 km/h^2 ( answer ) 

Answer 2

Explanation:

Given:

• Initial speed of ship (u) = 56 km/h
• Final speed of ship (v) = 58 km/h
• Time taken = 1 second

To Find:

• What is its acceleration?

Solution: First we have to convert 1 second into Hours.

• 1 hour = 3600 seconds so,
• 1 second = 1 /3600 hours

★ To find acceleration we use the formula ★

$a \: = \frac{v - u}{t}$

$a = \frac{58 - 56}{1} \times 3600 \\ 2 \times 3600 \\ = 7200 \: km/</strong><strong>h</strong><strong>$