Question

a car starts from rest and travels a distance of 100m in 5 seconds with uniform acceleration find the acceleration of the car

Answer 1

Answer:

Explanation:

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Answer 2

Answer:

The acceleration of the given car is 8 m/s.

Explanation:

• A change in velocity concerning a change in time is called acceleration.
• It has m/sec as its unit and is expressed by the following equation;

                                                 $a=\frac{\delta v}{\delta t}$

• If the change in velocity is constant concerning time, it's called uniform acceleration.
• The relation of distance, initial velocity, time, and acceleration is given by;

                                            $s=ut+\frac{1}{2} at^{2}$

where,

                       s = distance

                       u = initial velocity

                       t = time

                       a = acceleration

Here,

u = 0 (as car starts from rest)

s = 100 m

t = 5 sec

                     ∴   $100=0+\frac{1}{2}\times a\times 5^{2}$

                           $a=\frac{200}{25} =8 m/sec$

Hence, the car traveling 100 meters in 5 sec will have 8 m/sec uniform acceleration.