Maths-
General
Easy
Question
The area of triangle with vertices at (–4, –1) , (1, 2), (4, –3)
- 12 sq. units
- 18 sq. units
- 17 sq. units
- 30 sq. units
The correct answer is: 17 sq. units
Here, the area of a triangle cannot be negative. Hence only the numerical value is considered.
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Physics-
An object is placed on the surface of a smooth inclined plane of inclination 
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is given by
An object is placed on the surface of a smooth inclined plane of inclination . It takes time t to reach the bottom. If the same objective is allowed to slide down a rough inclined plane of same inclination , it takes not to reach the bottom where n is a number greater than 1. The coefficient of friction is given by
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A block of mass m is held at the top of an inclined rough plane of angle of inclination . The coefficients of static and kinetic friction are 
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Physics-General
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Figure shows two blocks, each of mass m. The system is released from rest at the position, shown in fig. If initial acceleration of blocks A and B are a1 and a2 respectively and during the motion velocities of A and B are 
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Chemistry-General
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Chemistry-General
