10 x 2 = 20
11) If a 5 N and a 15 N forces are acting opposite to one another. Find the resultant force and the direction
of action of the resultant force
12) Differentiate mass and weight.
13) Handle in a door is always placed at the edge of door. Why?
14) How can you measure torque?
15) Define 1 N.
16) Define 1 dyne.
17) What is Impulsive force?
18) Take two eggs and drop them from a certain height one by one. Drop one egg onto a concrete floor and
another one onto a cushion pillow. What changes do you notice? When the egg is dropped onto a
concrete floor, it breaks. But, the egg dropped onto the cushion pillow does not break. Can you explain
why?
19) Weight of a person inside the liſt while at rest is 50 N. What is the weight he feels when lift
iloves up with an acceleration of 9.8 ms 2.
20) A rocket with a lift - off mass 20,000 kg is blasted upwards with an initial acceleration of 5.0 ms 2.
Calculate the initial thrust (Force) of the blast?
Answers
Answer:
10 x 2 = 20
11) If a 5 N and a 15 N forces are acting opposite to one another. Find the resultant force and the direction
of action of the resultant force
12) Differentiate mass and weight.
13) Handle in a door is always placed at the edge of door. Why?
14) How can you measure torque?
15) Define 1 N.
16) Define 1 dyne.
17) What is Impulsive force?
18) Take two eggs and drop them from a certain height one by one. Drop one egg onto a concrete floor and
another one onto a cushion pillow. What changes do you notice? When the egg is dropped onto a
concrete floor, it breaks. But, the egg dropped onto the cushion pillow does not break. Can you explain
why?
19) Weight of a person inside the liſt while at rest is 50 N. What is the weight he feels when lift
iloves up with an acceleration of 9.8 ms 2.
20) A rocket with a lift - off mass 20,000 kg is blasted upwards with an initial acceleration of 5.0 ms 2.
Calculate the initial thrust (Force) of the blast?
Explanation:
10 x 2 = 20
11) If a 5 N and a 15 N forces are acting opposite to one another. Find the resultant force and the direction
of action of the resultant force
12) Differentiate mass and weight.
13) Handle in a door is always placed at the edge of door. Why?
14) How can you measure torque?
15) Define 1 N.
16) Define 1 dyne.
17) What is Impulsive force?
18) Take two eggs and drop them from a certain height one by one. Drop one egg onto a concrete floor and
another one onto a cushion pillow. What changes do you notice? When the egg is dropped onto a
concrete floor, it breaks. But, the egg dropped onto the cushion pillow does not break. Can you explain
why?
19) Weight of a person inside the liſt while at rest is 50 N. What is the weight he feels when lift
iloves up with an acceleration of 9.8 ms 2.
20) A rocket with a lift - off mass 20,000 kg is blasted upwards with an initial acceleration of 5.0 ms 2.
Calculate the initial thrust (Force) of the blast?
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