# ASSORTMENT OF MOTION-AIEEE, IIT JEE, AIPMT PHYSICS--VI Online Test

A certain force applied to mass m1 gives it an acceleration of 15 m/s2. The same force 10 m/s2 , if the two masses are fixed together and the dome force is applied to the combination, then the acceleration will be ____.
6 m/s2
8 m/s2
9 m/s2
11 m/s2
A dish of mass 10 gm is kept horizontally in air by firing bullets of mass 5 g each at the rate of 10 per sec. If the bullets rebound with the same speed, what is the velocity with which the bullets are fired?
49 cm/s
147 cm/s
98 cm/s
196 cm/s
A boat of mass 300 kg, initially at rest is pulled by a force of 1.8  104 Newton through a distance of 3 m. Assuming that the resistance due to water is negligible, velocity of boat is ____.
6 m/s
8 m/s
9 m/s
11 m/s
A parachutist of weight w strikes the ground and comes to rest with an upward acceleration of magnitude 3 g. Force exerted on him by the ground during landing is ____.
2 w
3 w
4 w
5 w
Three equal weights of mass 2 kg each are hanging on a string passing over a foxed pulley as shown in the fig. What is the tension in the string connecting the weights B and C? 
zero
13 N
3.3 M
19.6 N
A 40 kg slab rests on a frictionless floor. A 10 kg block rests on top of the slab. The static coefficient of friction the block and the slab is 0.60 while the kinetic coefficient is 0.40. The 10 kg block is acted upon by horizontal force 100 N. If g = 9.8 m/s2, then resulting acceleration of the slab will be ____. 
0.98 m/s2
1.47 m/s2
1.52 m/s2
6.1 m/s2
A ball of mass 0.5 kg moving with a velocity of 2 m/s strikes a wall normally and bounces back with the same speed .If the time of contact between the ball and wall is one millisecond, then average force exerted by a wall on the ball is ____.
125 Newton
1000 Newton
2000 Newton
5000 Newton
A body of mass 1 kg initially at rest explodes and breaks into three fragments of masses in the ratio 1: 3. The two pieces of equal masses fly off perpendicular to each other with a speed of 30 m/s each. What is the velocity of the heavier fragment?
10 m/s
20 m/s
A bullet of mass 0.01 kg is fired from a gun weighing 5.0 kg. If the initial speed of the bullet is 250 m/s, what is the speed with which the gun recoils?
-0.05 m/s
-0.25 m/s
+0.05 m/s
+0.25 m/s
A body of mass 5 kg undergoes a change in speed from 20 to 0.20 m/s. The momentum of the body would be ____.
increase by 99 kg m/s
decrease by 99 kg m/s
increase by 101 kg m/s
decrease by 101 kg m/s
Description:

Topis of the test are momentum, conservation of momentum,motion of a block placed on another block,acceleration etc

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Kajal Sengupta
Physics 9th to 12 th grade,CIE, Edexcel, AP, IB , CBSE, ICSE 87 Members Recommend
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