Question

a driver decrease the speed of car 50 m/s to 20m/s in10 second
s find the acceleration of the car
​

Answer 1

Explanation:

Acceleration is change in velocity per unit time

a=

(t

2

−t

1

)

(v

2

−v

1

)

v

2

−v

1

=30kmph= 30×(5/18)m/s

=

3

25

m/s

t

2

−t

1

=10s

a=

(3×10)

25

=

6

5

m/s

2

Answer 2

Answer:

Acceleration of person is 5m/s²