A mass of 45kg falls due to gravity. Calculate the force with which it hits the ground ? (g= 9.81 m/s2)
Force, mass, pressure calculations

Quiz
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Other
•
9th - 10th Grade
•
Hard
Manjit Bansal
Used 76+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
450 N
691.98 N
441.45 N
235.23 N
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If an object hits the ground with a force = 135N, calculate the mass of the object.
234.0 Kg
56.45 Kg
13.76 Kg
12.12 Kg
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 1 Ton mass has to be lifted against gravity. Calculate the force required to do this. (1T = 1000Kg)
981 N
98.1 N
9.81 N
9810 N
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A force of 100N is exerted over an area of 1m2 , calculate the pressure exerted.
100 N/m2
1000 N/m2
10000 N/m2
10 N/m2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A load has a mass = 69 Kg and is exerted over an area of 8cm2 , calculate the pressure exerted.
346.11 kN/m2
846.1 kN/m2
8461.0 kN/m2
84.61 kN/m2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A load has a mass = 90kg and is exerted over and area of 12mm2 , calculate the pressure exerted.
73.58 kN/m2
735.8 kN/m2
7.358 kN/m2
882.9 kN/m2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A mass of 88kg exerts a pressure of 196kN/m2. Calculate the area over which the mass exerted its force. The answer must be expressed in m2
440 m2
44 m2
.044 m2
0.0044 m2
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A worker throws a 5 kg object from a roof to the ground. If the object hits the ground with a force = 80 N, calculate how much MORE acceleration was added to gravity, by the worker, when he threw the object. (F = m x a)
6.19 m/s2
16.9 m/s2
9.16 m/s2
1.96 m/s2
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