1
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A body falls on a surface of coefficient of restitution 0.6 from a height of $$1 \mathrm{~m}$$. Then the body rebounds to a height of

A
1 m
B
0.36 m
C
0.4 m
D
0.6 m
2
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two massless springs of spring constant $$\mathrm{K}_1$$ and $$\mathrm{K}_2$$ are connected one after the other forming a single chain, suspended vertically and certain mass is attached to the free end. If '$$e_1$$' and '$$e_2$$' are their respective extensions and '$$\mathrm{f}$$' is their stretching force, the total extension produced is

A
$$\mathrm{f}\left(\frac{1}{\mathrm{~K}_1}+\frac{1}{\mathrm{~K}_2}\right)$$
B
$$\mathrm{f}\left(\frac{1}{\mathrm{~K}_1}-\frac{1}{\mathrm{~K}_2}\right)$$
C
$$\mathrm{f}\left(\mathrm{K}_1+\mathrm{K}_2\right)$$
D
$$\mathrm{f}\left(\mathrm{K}_1-\mathrm{K}_2\right)$$
3
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A wooden black of mass '$$\mathrm{m}$$' moves with velocity '$$\mathrm{V}$$' and collides with another block of mass '$$4 \mathrm{~m}$$', which is at rest. After collision the block of mass '$$\mathrm{m}$$' comes to rest. The coefficient of restitution will be

A
0.7
B
0.25
C
0.4
D
0.5
4
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Force is applied to a body of mass $$2 \mathrm{~kg}$$ at rest on a frictionless horizontal surface as shown in the force against time $$(F-t)$$ graph. The speed of the body after 1 second is

MHT CET 2021 22th September Evening Shift Physics - Center of Mass and Collision Question 17 English

A
7.5 m/s
B
12.5 m/s
C
10 m/s
D
15 m/s
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