#PHYSICS #F4
A lorry of mass 1200kg moves with velocity of 30 ms-¹. When the brakes of the lorry are applied, the car stops in 5 seconds. Calculate the average braking force of the car.
A lorry of mass 1200kg moves with velocity of 30 ms-¹. When the brakes of the lorry are applied, the car stops in 5 seconds. Calculate the average braking force of the car.
Anonymous Quiz
19%
-7100 N
35%
-7300 N
38%
-7200 N
8%
-7400 N
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#PHYSICS#F4
Derived quantity is a physical quatity that is derived from
Derived quantity is a physical quatity that is derived from
Anonymous Quiz
17%
addition and multiplication of base quantities
38%
addition or division or both addition and division of base quantities
20%
multiplication and division of base quantites
25%
multiplication or division or both multiplication and division of base quantities
Anonymous Quiz
6%
Small
6%
Big
79%
Measurable
9%
Variable
#PHYSICS #F4
Which of the following physical quantities will change when an object is brought from Earth to the Moon ?
Which of the following physical quantities will change when an object is brought from Earth to the Moon ?
Anonymous Quiz
33%
Mass
42%
Weight
17%
Inertia
8%
Length
#PHYSICS #F4
A car moves with uniform acceleration from 0 m s^-1 to 20 m s^-1 in 4 seconds. What is the acceleration of the car?
A car moves with uniform acceleration from 0 m s^-1 to 20 m s^-1 in 4 seconds. What is the acceleration of the car?
Anonymous Quiz
39%
5 m s^-1
28%
10 m s^-1
25%
20 m s^-1
9%
80 m s^-1
Anonymous Quiz
24%
Speed
40%
Velocity
23%
Distance
13%
Acceleration
#PHYSICS #F4
The heat capacity of sodium metal is 1500 J K^-1 , if the mass of sodium metal is 75 kg, what is the specific heat capacity of sodium metal?
The heat capacity of sodium metal is 1500 J K^-1 , if the mass of sodium metal is 75 kg, what is the specific heat capacity of sodium metal?
Anonymous Quiz
20%
10 J kg^-1 K^-1
62%
20 J kg^-1 K^-1
18%
40 J kg^-1 K^-1