A $60\, kg$ body is pushed with just enough force to start it moving across a floor and the same force continues to act afterwards. The coefficient of static friction and sliding friction are $0.5$ and $0.4$ respectively. The acceleration of the body is ........ $m/{s^2}$
A $60\, kg$ body is pushed with just enough force to start it moving across a floor and the same force continues to act afterwards. The coefficient of static friction and sliding friction are $0.5$ and $0.4$ respectively. The acceleration of the body is ........ $m/{s^2}$
- A
$6$
- B
$4.9$
- C
$3.92$
- D
$1$
Similar Questions
A block of mass $5\,kg$ is placed at rest on a table of rough surface. Now, if a force of $30\,N$ is applied in the direction parallel to surface of the table, the block slides through a distance of $50\,m$ in an interval of time $10\,s$. Coefficient of kinetic friction is (given, $g =10\,ms ^{-2}$)
A block of mass $5\,kg$ is placed at rest on a table of rough surface. Now, if a force of $30\,N$ is applied in the direction parallel to surface of the table, the block slides through a distance of $50\,m$ in an interval of time $10\,s$. Coefficient of kinetic friction is (given, $g =10\,ms ^{-2}$)
- [JEE MAIN 2023]
$STATEMENT-1$ It is easier to pull a heavy object than to push it on a level ground. and
$STATEMENT-2$ The magnitude of frictional force depends on the nature of the two surfaces in contact.
$STATEMENT-1$ It is easier to pull a heavy object than to push it on a level ground. and
$STATEMENT-2$ The magnitude of frictional force depends on the nature of the two surfaces in contact.
- [IIT 2008]
A small block of mass $m$ is projected horizontally with speed $u$ where friction coefficient between block and plane is given by $\mu = cx$, where $x$ is displacement of the block on plane. Find maximum distance covered by the block
A small block of mass $m$ is projected horizontally with speed $u$ where friction coefficient between block and plane is given by $\mu = cx$, where $x$ is displacement of the block on plane. Find maximum distance covered by the block
A body is moving down a long inclined plane of slope $370$. The coefficient of friction between the body and plane varies as $\mu=0.3 x$, where $x$ is distance travelled down the plane. The body will have maximum speed. $\left(\sin 37{ }^{\circ}=\frac{3}{5}\right.$ and $\left.g=10\,m / s ^2\right)$
Which one of the following statements is correct
Which one of the following statements is correct