Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
The energy is costant but the linear momentum varies
The linear momentum is conatant but the energy varies
both energy and linear momentum are constant
The speed and the linear velocity are both constant
Correct answer is C
No explanation has been provided for this answer.
A motor vehicle is brought to rest from a speed of 15ms-1 in 20 seconds. Calculate the retardation.
0.75ms-1
1.33ms-2
5.00ms-2
7.50ms-2
Correct answer is A
Retardation = u−vt
= 15−020
= 0.75ms-1
20m
80m
160m
320m
Correct answer is B
max. height = U2sin2θ2g
= 80×80×sin2(30)2×10
= 80m
1.3ms-1
10.0ms-1
50.0ms-1
70.0ms-1
Correct answer is C
No explanation has been provided for this answer.