NEW
Font size
WorksheetsFORCE- DPP2 (ICSE )
Total questions: 10
Worksheet time: 10mins
In a uniform circular motion:
speed of body continuously changes because the direction of motion changes
velocity of body continuously changes because the direction of motion changes
the motion of body is accelerated
both (b) and (c)
A force of 50 dynes acts on a rigid body, such that the perpendicular distance between the fulcrum and the point of application of force is 75 cm. Calculate the moment of force.
1580 dyne cm
3975 dyne cm
2500 dyne cm
3750 dyne cm
Essential characteristic of equilibrium is:
momentum equals to zero
acceleration equals to zero
KE equals to zero
velocity equals to zero
The gate of a building is 3 m broad. It can be opened by applying 100 N force at the middle of the gate. Calculate the least force required to open this gate, (at a point 6m):
10N
30N
20N
50 N
From the given figure, calculate moment of force about (i) P and (ii) Q.
5 N-m clockwise, 10 Nm anti-clockwise
10 N-m clockwise, 10 Nm anti-clockwise
5 N-m clockwise, 5 Nm clockwise
10 N-m clockwise, 5 Nm anti-clockwise
When a car of mass M passes through a convex bridge of radius r with velocity v, then it exerts a force on it. What is the magnitude of the force?
Mg
Mg+rmv2
rmv2
Mg−rmv2
A uniform metre scale of weight 50 gf is balanced at the 40 cm mark, when a weight of 100 gf is suspended at the 5 cm mark. Where must a weight of 80 gf be suspended to balance the metre scale ?
10.00 cm
66.00 cm
70.00 cm
77.5 cm
The diagram alongside shows a force F acting at point A, such that it produces a moment of force of 20 Nm in clockwise direction. Calculate the magnitude of force F.
10 N
20 N
30 N
40 N
How many types of equilibrium you know?
2
3
4
1
A body is describing a uniform circular motion. Which of the following quantities is/are constant?
speed
acceleration
velocity
both (a) and (b)
